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University of Waterloo
1.
Stotyn, Sean Michael Anton.
Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories.
Degree: 2012, University of Waterloo
URL: http://hdl.handle.net/10012/6801 
► This thesis examines exact solutions to gauged and ungauged supergravity theories in space-time dimensions D⩾5 as well as various instabilities of such solutions. I begin…
(more)
▼ This thesis examines exact solutions to gauged and ungauged supergravity theories in space-time dimensions D⩾5 as well as various instabilities of such solutions.
I begin by using two solution generating techniques for five dimensional minimal ungauged supergravity, the first of which exploits the existence of a Killing spinor to generate supersymmetric solutions, which are time-like fibrations over four dimensional hyper-Kähler base spaces. I use this technique to construct a supersymmetric solution with the Atiyah-Hitchin metric as the base space. This solution has three independent parameters and possesses mass, angular momentum, electric charge and magnetic charge. Via an analysis of a congruence of null geodesics, I determine that the solution contains a region with naked closed time-like curves. The centre of the space-time is a conically singular pseudo-horizon that repels geodesics, otherwise known as a repulson. The region exterior to the closed time-like curves is outwardly geodesically complete and possesses an asymptotic region free of pathologies provided the angular momentum is chosen appropriately.
The second solution generating technique exploits a hidden G2 symmetry in five dimensional minimal supergravity. I use this hidden symmetry approach to construct the most general black string solution in five dimensions, which is endowed with mass, angular momentum, linear momentum, electric charge and magnetic charge. This general black string satisfies the first law of thermodynamics, with the Bekenstein-Hawking entropy being reproduced via a microstate counting in terms of free M-branes in the decoupling limit. Furthermore it reduces to all previously known black string solutions in its various limits. A phase diagram for extremal black strings is produced to draw conclusions about extremal black rings, in particular why supersymmetric black rings exhibit a lower bound on the electric charge. The same phase diagram further suggests the existence of a new class of supersymmetric black rings, which are completely disconnected from the previously known class.
A particular limit of this general black string is the magnetically charged black string, whose thermodynamic phase behaviour and perturbative stability were previously studied but not very well understood. I construct magnetically charged topological solitons, which I then show play an important role in the phase structure of these black strings. Topological solitons in Einstein-Maxwell gravity, however, were previously believed to generically correspond to unstable "bubbles of nothing" which expand to destroy the space-time. I show that the addition of a topological magnetic charge changes the stability properties of these Kaluza-Klein bubbles and that there exist perturbatively stable, static, magnetically charged bubbles which are the local vacuum and the end-point of Hawking evaporation of magnetic black strings.
In gauged supergravity theories, bubbles of nothing are stabilised by the positive energy theorem for…
Subjects/Keywords: Black Holes; Supergravity
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APA (6th Edition):
Stotyn, S. M. A. (2012). Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6801
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Stotyn, Sean Michael Anton. “Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories.” 2012. Thesis, University of Waterloo. Accessed March 08, 2021.
http://hdl.handle.net/10012/6801.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stotyn, Sean Michael Anton. “Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories.” 2012. Web. 08 Mar 2021.
Vancouver:
Stotyn SMA. Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories. [Internet] [Thesis]. University of Waterloo; 2012. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/10012/6801.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stotyn SMA. Exact Solutions and Black Hole Stability in Higher Dimensional Supergravity Theories. [Thesis]. University of Waterloo; 2012. Available from: http://hdl.handle.net/10012/6801
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universiteit Utrecht
2.
Ciceri, F.P.M.Y.
On gamma-deformations of type 2B superstring backgrounds.
Degree: 2012, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/255028
► We consider type 2B superstring consistent backgrounds with U(1)d global isometry. The moduli-generating group for such backgrounds is SO(d,d,R). We focus on the subgroup whose…
(more)
▼ We consider type 2B superstring consistent backgrounds with U(1)
d global isometry. The moduli-generating group for such backgrounds is SO(d,d,R). We focus on the subgroup whose elements correspond to the gamma-deformations introduced by O. Lunin and J. Maldacena. From the point of view of
supergravity, these deformations can be used as a classical solution generating technique. The action of SO(d,d,R) on the NS-NS and R-R bosonic fields of type 2B
supergravity is presented. In this framework, we obtain the gamma-deformed AdS
5xS5 solution, known as the Lunin-Maldacena solution, and show subsequently that it satisfies the equations of motion derived from a type 2B
supergravity covariant action. Finally, we consider several gamma-deformations of a 1/4-supersymmetric AdS
2xS2xT6 type 2B solution. We present these new solutions and determine their amount of unbroken supersymmetries.
Advisors/Committee Members: Arutyunov, G..
Subjects/Keywords: superstring; supergravity; gamma-deformations
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APA (6th Edition):
Ciceri, F. P. M. Y. (2012). On gamma-deformations of type 2B superstring backgrounds. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/255028
Chicago Manual of Style (16th Edition):
Ciceri, F P M Y. “On gamma-deformations of type 2B superstring backgrounds.” 2012. Masters Thesis, Universiteit Utrecht. Accessed March 08, 2021.
http://dspace.library.uu.nl:8080/handle/1874/255028.
MLA Handbook (7th Edition):
Ciceri, F P M Y. “On gamma-deformations of type 2B superstring backgrounds.” 2012. Web. 08 Mar 2021.
Vancouver:
Ciceri FPMY. On gamma-deformations of type 2B superstring backgrounds. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2021 Mar 08].
Available from: http://dspace.library.uu.nl:8080/handle/1874/255028.
Council of Science Editors:
Ciceri FPMY. On gamma-deformations of type 2B superstring backgrounds. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/255028
Universiteit Utrecht
3.
Ðô, N.B.T.
BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity.
Degree: 2016, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/335289
► There are hints that the N=1 anti-de Sitter supersymmetry algebra for in four dimensions permits 1/2-BPS states at the bound E=|J|. Recent literatures suggest that…
(more)
▼ There are hints that the N=1 anti-de Sitter supersymmetry algebra for in four dimensions permits 1/2-BPS states at the bound E=|J|. Recent literatures suggest that for N=2 with zero magnetic and electric charge, BPS states occurs at the same bound, which correspond to the ultra spinning limit. The main goal of the thesis is to determine whether or not there are BPS rotating black holes in N=1, D=4 anti-de Sitter
supergravity. We first gave a review of the necessary background on Kerr black holes, the N=1 supersymmetry algebra and
supergravity. We prove the non-existence of BPS Kerr black holes in flat space and presented the current work on solving for the complete set of Killing spinors of Kerr-AdS.
Advisors/Committee Members: Vandoren, S..
Subjects/Keywords: BPS states; black holes; supergravity
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APA (6th Edition):
Ðô, N. B. T. (2016). BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/335289
Chicago Manual of Style (16th Edition):
Ðô, N B T. “BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity.” 2016. Masters Thesis, Universiteit Utrecht. Accessed March 08, 2021.
http://dspace.library.uu.nl:8080/handle/1874/335289.
MLA Handbook (7th Edition):
Ðô, N B T. “BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity.” 2016. Web. 08 Mar 2021.
Vancouver:
Ðô NBT. BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity. [Internet] [Masters thesis]. Universiteit Utrecht; 2016. [cited 2021 Mar 08].
Available from: http://dspace.library.uu.nl:8080/handle/1874/335289.
Council of Science Editors:
Ðô NBT. BPS rotating black holes in N=1, D=4 anti-de Sitter supergravity. [Masters Thesis]. Universiteit Utrecht; 2016. Available from: http://dspace.library.uu.nl:8080/handle/1874/335289
4.
Sengupta, Sandipan.
Gauge theory of gravity with topological
invariants; -.
Degree: Physical Science, 2011, INFLIBNET
URL: http://shodhganga.inflibnet.ac.in/handle/10603/4742
► In gravity theory in four dimensions, there are three possible topological terms which can be added to the Lagrangian density. These are the Nieh Yan,…
(more)
▼ In gravity theory in four dimensions, there are
three possible topological terms which can be added to the
Lagrangian density. These are the Nieh Yan, Pontryagin and Euler
terms. Here we investigate the e_ect of these terms in the context
of canonical SU(2) formulation of gravity. We set up a general
SU(2) formulation for gravity including all three terms. The theory
contains three topological parameters associated with the three
terms. Finally, we study what could be a suitable quantum framework
for gravity in which one of these parameters, namely the
Barbero-Immirzi parameter, can be interpreted as a vacuum angle
exactly like the theta parameter in gauge
theories.
Bibliography p.69-71
Advisors/Committee Members: Date, Ghanashyam.
Subjects/Keywords: Time gauge; Gauge Theory; Supergravity
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APA (6th Edition):
Sengupta, S. (2011). Gauge theory of gravity with topological
invariants; -. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/4742
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sengupta, Sandipan. “Gauge theory of gravity with topological
invariants; -.” 2011. Thesis, INFLIBNET. Accessed March 08, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/4742.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sengupta, Sandipan. “Gauge theory of gravity with topological
invariants; -.” 2011. Web. 08 Mar 2021.
Vancouver:
Sengupta S. Gauge theory of gravity with topological
invariants; -. [Internet] [Thesis]. INFLIBNET; 2011. [cited 2021 Mar 08].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4742.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sengupta S. Gauge theory of gravity with topological
invariants; -. [Thesis]. INFLIBNET; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/4742
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
5.
Käding, Christian.
Compactification of D=11 supergravity on S4 x T3.
Degree: Theoretical Physics, 2015, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255531
► We have a look at compactification as a special way of explaining why we only observe 4 spacetime dimensions although theories as string or…
(more)
▼ We have a look at compactification as a special way of explaining why we only observe 4 spacetime dimensions although theories as string or M-theory require more. In particular, we treat compactification of 11-dimensional supergravity, which is the low energy limit of M-theory, on S4 x T3. At first, we present the basic ideas behind those theories and compactification. Then we introduce important concepts of supersymmetry and supergravity. Afterwards, our particular case of compactification is treated, where we first review the results for the compactification on S4 before we calculate the scalar potential from the reduction ansatz for a so-called twisted torus.
Subjects/Keywords: compactification; supergravity; theoretical; physics; theory
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APA (6th Edition):
Käding, C. (2015). Compactification of D=11 supergravity on S4 x T3. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255531
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Käding, Christian. “Compactification of D=11 supergravity on S4 x T3.” 2015. Thesis, Uppsala University. Accessed March 08, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255531.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Käding, Christian. “Compactification of D=11 supergravity on S4 x T3.” 2015. Web. 08 Mar 2021.
Vancouver:
Käding C. Compactification of D=11 supergravity on S4 x T3. [Internet] [Thesis]. Uppsala University; 2015. [cited 2021 Mar 08].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255531.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Käding C. Compactification of D=11 supergravity on S4 x T3. [Thesis]. Uppsala University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255531
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Minnesota
6.
Garcia Garcia, Marcos.
No-Scale Inflation.
Degree: PhD, Physics, 2016, University of Minnesota
URL: http://hdl.handle.net/11299/182832
► Supersymmetry is the most natural framework for physics above the TeV scale, and the corresponding framework for early-Universe cosmology, including inflation, is supergravity. No-scale supergravity…
(more)
▼ Supersymmetry is the most natural framework for physics above the TeV scale, and the corresponding framework for early-Universe cosmology, including inflation, is supergravity. No-scale supergravity emerges from generic string compactifications and yields a non-negative potential, and is therefore a plausible framework for constructing models of inflation. No-scale inflation yields naturally predictions similar to those of the Starobinsky model based on R + R2 gravity, with a tilted spectrum of scalar perturbations: ns∼0.96, and small values of the tensor-to-scalar perturbation ratio r < 0.1, as favored by Planck and other data on the cosmic microwave background (CMB). In this thesis we introduce a novel no-scale inflationary model that averts the stabilization problem of supergravity models; to study it we develop a multi-field formalism applicable to supergravity models. We discuss the low-energy phenomenology of generic no-scale models and its connection to the lifetime of the inflaton. We use our results to analyze the constraints on these models imposed by CMB measurements, which through the calculation of the number of e-folds N_* , we relate to constraints on the inflaton decay rate and other parameters of specific no-scale inflationary models. Finally, we revisit gravitino production following inflation, including thermal and non-thermal effects, and discuss the potential implications of upper limits on the gravitino abundance for no-scale models of inflation. Our results may provide insights into the embedding of inflation within string theory as well as its links to collider physics.
Subjects/Keywords: Cosmology; Inflation; Supergravity; Supersymmetry
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APA (6th Edition):
Garcia Garcia, M. (2016). No-Scale Inflation. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/182832
Chicago Manual of Style (16th Edition):
Garcia Garcia, Marcos. “No-Scale Inflation.” 2016. Doctoral Dissertation, University of Minnesota. Accessed March 08, 2021.
http://hdl.handle.net/11299/182832.
MLA Handbook (7th Edition):
Garcia Garcia, Marcos. “No-Scale Inflation.” 2016. Web. 08 Mar 2021.
Vancouver:
Garcia Garcia M. No-Scale Inflation. [Internet] [Doctoral dissertation]. University of Minnesota; 2016. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/11299/182832.
Council of Science Editors:
Garcia Garcia M. No-Scale Inflation. [Doctoral Dissertation]. University of Minnesota; 2016. Available from: http://hdl.handle.net/11299/182832
Universitat de Valencia
7.
Galli, Pietro.
Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
.
Degree: 2013, Universitat de Valencia
URL: http://hdl.handle.net/10550/30017
► Esta tesis de doctorado se dedica al estudio de los agujeros negros de supergravedad N=2 en cuatro dimensiones. Se concentra principalmente en el ánalisis de…
(more)
▼ Esta tesis de doctorado se dedica al estudio de los agujeros negros de supergravedad N=2 en cuatro dimensiones. Se concentra principalmente en el ánalisis de soluciones no supersimétricas, extremas y no extremas, a un solo centro o a multi-centro. Se han utilizado y profundizado nociones importantes como el formalismo de primer orden y el formalismo H-FGK. Se han encontrado nuevas soluciones de agujero negro y nuevas simetrías entre las variables del sistemas.
Advisors/Committee Members: Lledó Barrena, María Antonia (advisor).
Subjects/Keywords: kahler geometry;
black holes;
supergravity
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APA ·
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APA (6th Edition):
Galli, P. (2013). Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
. (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/30017
Chicago Manual of Style (16th Edition):
Galli, Pietro. “Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
.” 2013. Doctoral Dissertation, Universitat de Valencia. Accessed March 08, 2021.
http://hdl.handle.net/10550/30017.
MLA Handbook (7th Edition):
Galli, Pietro. “Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
.” 2013. Web. 08 Mar 2021.
Vancouver:
Galli P. Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
. [Internet] [Doctoral dissertation]. Universitat de Valencia; 2013. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/10550/30017.
Council of Science Editors:
Galli P. Non-supersymmetric black-hole solutions in N=2,D=4 supergravity
. [Doctoral Dissertation]. Universitat de Valencia; 2013. Available from: http://hdl.handle.net/10550/30017
8.
Hustler, Noel.
Homogeneity in supergravity.
Degree: PhD, 2016, University of Edinburgh
URL: http://hdl.handle.net/1842/19576
► This thesis is divided into three main parts. In the first of these (comprising chapters 1 and 2) we present the physical context of the…
(more)
▼ This thesis is divided into three main parts. In the first of these (comprising chapters 1 and 2) we present the physical context of the research and cover the basic geometric background we will need to use throughout the rest of this thesis. In the second part (comprising chapters 3 to 5) we motivate and develop the strong homogeneity theorem for supergravity backgrounds. We go on to prove it directly for a number of top-dimensional Poincaré supergravities and furthermore demonstrate how it also generically applies to dimensional reductions of those theories. In the third part (comprising chapters 6 and 7) we show how further specialising to the case of symmetric backgrounds allows us to compute complete classifications of such backgrounds. We demonstrate this by classifying all symmetric type IIB supergravity backgrounds. Next we apply an algorithm for computing the supersymmetry of symmetric backgrounds and use this to classify all supersymmetric symmetric M-theory backgrounds.
Subjects/Keywords: 530.14; supergravity; string theory; Poincaré supergravity; supersymmetry; spacetime geometry
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APA ·
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APA (6th Edition):
Hustler, N. (2016). Homogeneity in supergravity. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/19576
Chicago Manual of Style (16th Edition):
Hustler, Noel. “Homogeneity in supergravity.” 2016. Doctoral Dissertation, University of Edinburgh. Accessed March 08, 2021.
http://hdl.handle.net/1842/19576.
MLA Handbook (7th Edition):
Hustler, Noel. “Homogeneity in supergravity.” 2016. Web. 08 Mar 2021.
Vancouver:
Hustler N. Homogeneity in supergravity. [Internet] [Doctoral dissertation]. University of Edinburgh; 2016. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1842/19576.
Council of Science Editors:
Hustler N. Homogeneity in supergravity. [Doctoral Dissertation]. University of Edinburgh; 2016. Available from: http://hdl.handle.net/1842/19576
University of Michigan
9.
Charles, Anthony.
Explorations of Non-Supersymmetric Black Holes in Supergravity.
Degree: PhD, Physics, 2018, University of Michigan
URL: http://hdl.handle.net/2027.42/144036
► Finding a quantum theory of gravity and unifying our description of the fundamental forces in the universe has been a long-standing goal of the physics…
(more)
▼ Finding a quantum theory of gravity and unifying our description of the fundamental forces in the universe has been a long-standing goal of the physics community for the last several decades. Black holes provide a setting where both gravitational and quantum effects are important, and as such they are valuable in probing how such a theory of quantum gravity must behave; any quantum description of a black hole should be consistent with its macroscopic (low-energy) description in general relativity.
The only known examples where the microscopic details of a black hole are understood come from string theory and are heavily reliant on supersymmetry. Little is known about how to extend these descriptions to more realistic, non-supersymmetric settings. In this thesis, we make progress on this front by undergoing a careful exploration of non-supersymmetric black holes in theories of
supergravity. In particular, we show how generic Kerr-Newman black holes, when interpreted as solutions to N=2
supergravity, exhibit a surprising amount of universality in their behavior that points to a great deal of simplicity in their underlying quantum description.
In the first part of this thesis, we embed arbitrary Kerr-Newman black holes into N=2
supergravity. We then study the quantum fluctuations around these backgrounds and compute their contributions to the black hole entropy. We find that these quantum corrections are protected by a topological quantity and are thus invariant under arbitrary deformations of the black hole away from the BPS limit. The logarithmic corrections to the Bekenstein-Hawking entropy are thus universal and independent of black hole parameters for these black holes.
In the second part of this thesis, we study minimal
supergravity with higher derivative corrections and show that Kerr-Newman black holes can be consistently embedded into such theories with no modifications required to the geometry. Moreover, we show that these black holes are continuously connected to a BPS geometry. We also find that the entropy of these black holes is a topological invariant and thus insensitive to whether or not the black hole is a BPS state.
In the final part of this thesis, we explore the symmetries of off-shell N=2
supergravity and the corresponding constraints these symmetries impose on the theory. In particular, we show that the topological nature of our results follows directly from symplectic duality and supersymmetry. Moreover, these constraints persist even for black hole solutions that break the supersymmetry of the theory. These results establish a previously-unknown level of structure in the underlying microscopic description of these black holes.
Advisors/Committee Members: Larsen, Finn (committee member), Bieri, Lydia (committee member), Elvang, Henriette (committee member), Liu, James T (committee member), McMahon, Jeffrey John (committee member).
Subjects/Keywords: black holes; supergravity; string theory; Physics; Science
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Manager
APA (6th Edition):
Charles, A. (2018). Explorations of Non-Supersymmetric Black Holes in Supergravity. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/144036
Chicago Manual of Style (16th Edition):
Charles, Anthony. “Explorations of Non-Supersymmetric Black Holes in Supergravity.” 2018. Doctoral Dissertation, University of Michigan. Accessed March 08, 2021.
http://hdl.handle.net/2027.42/144036.
MLA Handbook (7th Edition):
Charles, Anthony. “Explorations of Non-Supersymmetric Black Holes in Supergravity.” 2018. Web. 08 Mar 2021.
Vancouver:
Charles A. Explorations of Non-Supersymmetric Black Holes in Supergravity. [Internet] [Doctoral dissertation]. University of Michigan; 2018. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/2027.42/144036.
Council of Science Editors:
Charles A. Explorations of Non-Supersymmetric Black Holes in Supergravity. [Doctoral Dissertation]. University of Michigan; 2018. Available from: http://hdl.handle.net/2027.42/144036
Texas A&M University
10.
Chong, Zhiwei.
Anti-de Sitter black holes in supergravity.
Degree: PhD, Physics, 2009, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1837
► In this dissertation, we systematically construct non-extremal charged rotating anti-de Sitter black hole solutions in four, five and seven dimensions. In four dimensions, we first…
(more)
▼ In this dissertation, we systematically construct non-extremal charged rotating
anti-de Sitter black hole solutions in four, five and seven dimensions. In four dimensions,
we first obtain the rotating Kerr-Taub-NUT metric with four independent
charges, as solutions of N = 2
supergravity coupled to three abelian vector multiplets
by the solution generating technique. Then we generalise the four-dimensional rotating
solutions to the solutions of gauged N = 4
supergravity with charges set pairwise
equal. In five dimensions, the most general charged rotating black hole solution has
three charge and two rotation parameters. We obtain several special cases of the general
solution. To be specific, we obtain the first example of a non-extremal rotating
black hole solution with two independent rotation parameters, which has two charge
parameters set equal and the third vanishing. In another example, we obtain the nonextremal
charged rotating black hole solution with three charge parameters set equal
and non-equal rotation parameters. We are also able to construct the single-charge
solution with two independent rotation parameters. In seven dimensions, we obtain
the solution for non-extremal charged rotating black holes in gauged
supergravity, in
the case where the three rotation parameters are set equal. There are two independent
charges, corresponding to gauge fields in the U(1) × U(1) abelian subgroup of
the SO(5) gauge group.
Advisors/Committee Members: Pope, Chris (advisor), Arnowitt, Richard (committee member), Fulling, Steve (committee member), Sezgin, Ergin (committee member).
Subjects/Keywords: black hole; supergravity
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APA (6th Edition):
Chong, Z. (2009). Anti-de Sitter black holes in supergravity. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1837
Chicago Manual of Style (16th Edition):
Chong, Zhiwei. “Anti-de Sitter black holes in supergravity.” 2009. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-1837.
MLA Handbook (7th Edition):
Chong, Zhiwei. “Anti-de Sitter black holes in supergravity.” 2009. Web. 08 Mar 2021.
Vancouver:
Chong Z. Anti-de Sitter black holes in supergravity. [Internet] [Doctoral dissertation]. Texas A&M University; 2009. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1837.
Council of Science Editors:
Chong Z. Anti-de Sitter black holes in supergravity. [Doctoral Dissertation]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1837
Northeastern University
11.
Spisak, Andrew B.
Probing coannihilation regions of supergravity unification at the LHC.
Degree: PhD, Department of Physics, 2017, Northeastern University
URL: http://hdl.handle.net/2047/D20251545
► This work addresses two of the main open problems of particle physics: the discovery of supersymmetry and the identification of the constituents of dark matter.…
(more)
▼ This work addresses two of the main open problems of particle physics: the discovery of supersymmetry and the identification of the constituents of dark matter. Supersymmetry is a proposed symmetry of nature whose extension, the supergravity theory, is widely believed to govern the nature of physics beyond the standard model. One of the predictions of supersymmetry and supergravity theories is the existence of new particles, called sparticles, which are counterparts of the existing matter in the universe. Their discovery is essential for the confirmation of supersymmetry and supergravity as the governing frameworks for physics beyond the standard model. The work of this thesis focuses on the exploration of supersymmetry and supergravity models which can simultaneously explain – through the phenomenon of coannihilation – the observed amount of dark matter, i.e., about 27% of the total mass and energy of the universe. This work describes models for which the properties of sparticles are consistent with the observed properties of dark matter in the universe and discusses strategies for the discovery of sparticles at the Large Hadron Collider, which is currently collecting data at a center of mass energy of 13 TeV. The possibility of direct detection of dark matter in deep underground experiments such as LUX-ZEPLIN is also explored.
Subjects/Keywords: coannihilation; dark matter; LHC; phenomenology; supergravity; supersymmetry
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APA (6th Edition):
Spisak, A. B. (2017). Probing coannihilation regions of supergravity unification at the LHC. (Doctoral Dissertation). Northeastern University. Retrieved from http://hdl.handle.net/2047/D20251545
Chicago Manual of Style (16th Edition):
Spisak, Andrew B. “Probing coannihilation regions of supergravity unification at the LHC.” 2017. Doctoral Dissertation, Northeastern University. Accessed March 08, 2021.
http://hdl.handle.net/2047/D20251545.
MLA Handbook (7th Edition):
Spisak, Andrew B. “Probing coannihilation regions of supergravity unification at the LHC.” 2017. Web. 08 Mar 2021.
Vancouver:
Spisak AB. Probing coannihilation regions of supergravity unification at the LHC. [Internet] [Doctoral dissertation]. Northeastern University; 2017. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/2047/D20251545.
Council of Science Editors:
Spisak AB. Probing coannihilation regions of supergravity unification at the LHC. [Doctoral Dissertation]. Northeastern University; 2017. Available from: http://hdl.handle.net/2047/D20251545
Columbia University
12.
Eckerle, Kate.
Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua.
Degree: 2017, Columbia University
URL: https://doi.org/10.7916/D85H7TH2
► This dissertation begins with a review of Calabi-Yau manifolds and their moduli spaces, flux compactification largely tailored to the case of type IIb supergravity, and…
(more)
▼ This dissertation begins with a review of Calabi-Yau manifolds and their moduli spaces, flux compactification largely tailored to the case of type IIb supergravity, and Coleman-De Luccia vacuum decay. The three chapters that follow present the results of novel research conducted as a graduate student.
Our first project is concerned with bubble collisions in single scalar field theories with multiple vacua. Lorentz boosted solitons traveling in one spatial dimension are used as a proxy to the colliding 3-dimensional spherical bubble walls. Recent work found that at sufficiently high impact velocities collisions between such bubble vacua are governed by "free passage" dynamics in which field interactions can be ignored during the collision, providing a systematic process for populating local minima without quantum nucleation.
We focus on the time period that follows the bubble collision and provide evidence that, for certain potentials, interactions can drive significant deviations from the free passage bubble profile, thwarting the production of a new patch with different field value. However, for simple polynomial potentials a fine-tuning of vacuum locations is required to reverse the free passage kick enough that the field in the collision region returns to the original bubble vacuum. Hence we deem classical transitions mediated by free passage robust.
Our second project continues with soliton collisions in the limit of relativistic impact velocity, but with the new feature of nontrivial field space curvature. We establish a simple geometrical interpretation of such collisions in terms of a double family of field profiles whose tangent vector fields stand in mutual parallel transport. This provides a generalization of the well-known limit in flat field space (free passage). We investigate the limits of this approximation and illustrate our analytical results with numerical simulations.
In our third and final project we investigate the distribution of field theories that arise from the low energy limit of flux vacua built on type IIb string theory compactified on the mirror quintic. For a large collection of these models, we numerically determine the distribution of Taylor coefficients in a polynomial expansion of each model's scalar potential to fourth order. We provide an analytic explanation of the proncounced hierarchies exhibited by the random sample of masses and couplings generated numerically. The analytic argument is based on the structure of masses in no scale supergravity and the divergence of the Yukawa coupling at the conifold point in the moduli space of the mirror quintic. Our results cast the superpotential vev as a random element whose capacity to cloud structure vanishes as the conifold is approached.
Subjects/Keywords: Physics; Supergravity; Bubbles – Dynamics; Solitons – Mathematical models
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Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Eckerle, K. (2017). Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D85H7TH2
Chicago Manual of Style (16th Edition):
Eckerle, Kate. “Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua.” 2017. Doctoral Dissertation, Columbia University. Accessed March 08, 2021.
https://doi.org/10.7916/D85H7TH2.
MLA Handbook (7th Edition):
Eckerle, Kate. “Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua.” 2017. Web. 08 Mar 2021.
Vancouver:
Eckerle K. Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua. [Internet] [Doctoral dissertation]. Columbia University; 2017. [cited 2021 Mar 08].
Available from: https://doi.org/10.7916/D85H7TH2.
Council of Science Editors:
Eckerle K. Capriccio For Strings: Collision-Mediated Parallel Transport in Curved Landscapes and Conifold-Enhanced Hierarchies Among Mirror Quintic Flux Vacua. [Doctoral Dissertation]. Columbia University; 2017. Available from: https://doi.org/10.7916/D85H7TH2
University of Oxford
13.
Wilkinson, Stephen Kidman.
Low-energy N=1 supergravity and N=2 supersymmetry models.
Degree: PhD, 1985, University of Oxford
URL: http://ora.ox.ac.uk/objects/uuid:97d393e8-6dd0-454a-a36b-e72f8f03369c
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355826
► Firstly, scalar quark mass matrices are calculated for a non-minimal SU5 N=l supergravity theory with realistic fermion masses. The squark mixing matrices, analogues of the…
(more)
▼ Firstly, scalar quark mass matrices are calculated for a non-minimal SU5 N=l supergravity theory with realistic fermion masses. The squark mixing matrices, analogues of the Kobayashi-Maskawa matrices for quarks, are also calculated and have significant off-diagonal entries. Thus, there are non-zero flavour-changing gaugino interactions between 'up' quarks and 'up' squarks in the non-minimal model. This is in contrast to the case for minimal SU5 . It is shown that in the non-minimal model flavour-changing gluino interactions contribute to the proton decay modes p → μ+K0, ῡμK+ at about the same rate as the mode p → ῡμK+ mediated by Wino exchange. Contributions to the KL-KS mass difference from flavour-changing gluino and wino interactions are small. Secondly, for a finite N=2 globally supersymmetric theory it is shown that the set of finiteness-preserving soft operators previously derived by Parkes and West is incomplete. The complete set of 1-loop finite operators is derived by a graphical analysis, and it is shown that most of these preserve finiteness to all orders. The low-energy N=2 model of Del Aguila et al. is reviewed, and it is shown that new constraints on the τ-neutrino mass require an unnaturally high scale of supersymmebry breaking in the model.
Subjects/Keywords: 539.7; Supergravity : Supersymmetry
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MLA ·
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CSE |
Export
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APA (6th Edition):
Wilkinson, S. K. (1985). Low-energy N=1 supergravity and N=2 supersymmetry models. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:97d393e8-6dd0-454a-a36b-e72f8f03369c ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355826
Chicago Manual of Style (16th Edition):
Wilkinson, Stephen Kidman. “Low-energy N=1 supergravity and N=2 supersymmetry models.” 1985. Doctoral Dissertation, University of Oxford. Accessed March 08, 2021.
http://ora.ox.ac.uk/objects/uuid:97d393e8-6dd0-454a-a36b-e72f8f03369c ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355826.
MLA Handbook (7th Edition):
Wilkinson, Stephen Kidman. “Low-energy N=1 supergravity and N=2 supersymmetry models.” 1985. Web. 08 Mar 2021.
Vancouver:
Wilkinson SK. Low-energy N=1 supergravity and N=2 supersymmetry models. [Internet] [Doctoral dissertation]. University of Oxford; 1985. [cited 2021 Mar 08].
Available from: http://ora.ox.ac.uk/objects/uuid:97d393e8-6dd0-454a-a36b-e72f8f03369c ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355826.
Council of Science Editors:
Wilkinson SK. Low-energy N=1 supergravity and N=2 supersymmetry models. [Doctoral Dissertation]. University of Oxford; 1985. Available from: http://ora.ox.ac.uk/objects/uuid:97d393e8-6dd0-454a-a36b-e72f8f03369c ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355826
Hong Kong University of Science and Technology
14.
Wong, Sam Sung Ching.
Statistical distribution of vacuum energy density in A class of string-inspired supergravity models.
Degree: 2014, Hong Kong University of Science and Technology
URL: http://repository.ust.hk/ir/Record/1783.1-71707
;
https://doi.org/10.14711/thesis-b1334495
;
http://repository.ust.hk/ir/bitstream/1783.1-71707/1/th_redirect.html
► An unexpectedly tiny cosmological constant (i.e. the vacuum energy density) Λ = 10-122 MP4 has been observed since the 1990s. This thesis examine the statistical…
(more)
▼ An unexpectedly tiny cosmological constant (i.e. the vacuum energy density) Λ = 10-122 MP4 has been observed since the 1990s. This thesis examine the statistical interpretation of the cosmological constant problem in supergravity models. The racetrack model in Type IIB string theory is studied in the presence of leading α-correction in flux compactification. We show that a class of de-Sitter vacua is generic under the approximation of large volume compactification. The absence of constraint on the compactified volume for the meta-stable de-Sitter vacua in this model leads to a controllable α' correction. We find that the median Λ50% is exponentially suppressed by the compactified volume and the probability distribution function of Λ diverges as Λ approaches 0+. We then study the large volume scenario model and show that the scale of gravitino mass can be splitted from that of the cosmological constant. The probability distribution of Λ in this model where SUSY can be broken or remain unbroken peaks at Λ = 0- but anti de-Sitter vacua is generic in this model in the absence of fine tuned uplifting.
Subjects/Keywords: Cosmological constants
; Mathematical models
; Supergravity
; String models
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Export
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APA (6th Edition):
Wong, S. S. C. (2014). Statistical distribution of vacuum energy density in A class of string-inspired supergravity models. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-71707 ; https://doi.org/10.14711/thesis-b1334495 ; http://repository.ust.hk/ir/bitstream/1783.1-71707/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wong, Sam Sung Ching. “Statistical distribution of vacuum energy density in A class of string-inspired supergravity models.” 2014. Thesis, Hong Kong University of Science and Technology. Accessed March 08, 2021.
http://repository.ust.hk/ir/Record/1783.1-71707 ; https://doi.org/10.14711/thesis-b1334495 ; http://repository.ust.hk/ir/bitstream/1783.1-71707/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wong, Sam Sung Ching. “Statistical distribution of vacuum energy density in A class of string-inspired supergravity models.” 2014. Web. 08 Mar 2021.
Vancouver:
Wong SSC. Statistical distribution of vacuum energy density in A class of string-inspired supergravity models. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2014. [cited 2021 Mar 08].
Available from: http://repository.ust.hk/ir/Record/1783.1-71707 ; https://doi.org/10.14711/thesis-b1334495 ; http://repository.ust.hk/ir/bitstream/1783.1-71707/1/th_redirect.html.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wong SSC. Statistical distribution of vacuum energy density in A class of string-inspired supergravity models. [Thesis]. Hong Kong University of Science and Technology; 2014. Available from: http://repository.ust.hk/ir/Record/1783.1-71707 ; https://doi.org/10.14711/thesis-b1334495 ; http://repository.ust.hk/ir/bitstream/1783.1-71707/1/th_redirect.html
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Southern California
15.
Suh, Minwoo.
Generalizations of holographic renormalization group
flows.
Degree: PhD, Physics, 2012, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/57103/rec/2981
► The AdS/CFT correspondence conjectures the duality between type IIB supergravity on AdS5 x S5 and N = 4 super Yang-Mills theory. Mass deformations of N…
(more)
▼ The AdS/CFT correspondence conjectures the duality
between type IIB
supergravity on AdS
5 x S
5 and N = 4 super
Yang-Mills theory. Mass deformations of N = 4 super Yang-Mills
theory drive renormalization group (RG) flows. Holographic RG flows
are described by domain wall solutions interpolating between AdS
5
geometries at critical points of N = 8 gauged
supergravity in five
dimensions. In this thesis we study two directions of
generalizations of holographic RG flows. ❧ First, motivated by the
Janus solutions, we study holographic RG flows with dilaton and
axion fields. To be specific, we consider the SU(3)-invariant flow
with dilaton and axion fields, and discover the known
supersymmetric Janus solution in five dimensions. Then, by
employing the lift ansatz, we uplift the supersymmetric Janus
solution of the SU(3)-invariant truncation with dilaton and axion
fields to a solution of type IIB
supergravity. We identify the
uplifted solution to be one of the known supersymmetric Janus
solution in type IIB
supergravity. Furthermore, we consider the
SU(2)xU(1)-invariant N = 2 and N = 1 supersymmetric flows with
dilaton and axion fields. ❧ Second, motivated by the development in
AdS/CMT, we study holographic RG flows with gauge fields. We
consider the SU(3)-invariant flow with electric potentials or
magnetic fields, and find first-order systems of flow equations for
each case.
Advisors/Committee Members: Pilch, Krzysztof (Committee Chair), Warner, Nicholas P. (Committee Member), Bars, Itzhak (Committee Member), Shakeshaft, Robin (Committee Member), Malikov, Fedor (Committee Member).
Subjects/Keywords: string theory; supergravity; the AdS/CFT correspondence
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APA ·
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MLA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Suh, M. (2012). Generalizations of holographic renormalization group
flows. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/57103/rec/2981
Chicago Manual of Style (16th Edition):
Suh, Minwoo. “Generalizations of holographic renormalization group
flows.” 2012. Doctoral Dissertation, University of Southern California. Accessed March 08, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/57103/rec/2981.
MLA Handbook (7th Edition):
Suh, Minwoo. “Generalizations of holographic renormalization group
flows.” 2012. Web. 08 Mar 2021.
Vancouver:
Suh M. Generalizations of holographic renormalization group
flows. [Internet] [Doctoral dissertation]. University of Southern California; 2012. [cited 2021 Mar 08].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/57103/rec/2981.
Council of Science Editors:
Suh M. Generalizations of holographic renormalization group
flows. [Doctoral Dissertation]. University of Southern California; 2012. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/57103/rec/2981
Utah State University
16.
Dimmitt, Kevin.
Massive Graviton Spectra in Supergravity.
Degree: MS, Physics, 2020, Utah State University
URL: https://digitalcommons.usu.edu/etd/7906
► Development of a unified theory of physics would pave the way for new research and technology development for many years to come. Unfortunately, the…
(more)
▼ Development of a unified theory of physics would pave the way for new research and technology development for many years to come. Unfortunately, the two best current theories explaining nature, the Standard Model of particle physics and general relativity, do not seem to be compatible, requiring the development of more complicated models which contains both of these at their respective limits. Supergravities are one set of theories which may, at least in part, provide hints as to how it may be possible to unify physics into a single model.
This research project follows from a line of investigation which the primary investigator and collaborators have been pursuing for the past several years exploring the properties of
supergravity. The main goal of this project was attempting to confirm whether or not the mass spectra of gravitons are common among different theories of
supergravity, and if not to find any properties which are universal, in order to improve understanding of super-gravities as a whole. Our research group examined 8 sectors of symmetry within 3 different
supergravity theories and found that these mass spectra are not universal, but that there do exist relations which are. We then found a way to write all the mass spectra we investigated and these relations we found in a universal way using the language of general relativity.
Advisors/Committee Members: Oscar Varela, Mark Fels, Praxitels Ntokos, ;.
Subjects/Keywords: supergravity; supersymmetry; AdS/CFT correspondence; Physics
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MLA ·
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Export
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Manager
APA (6th Edition):
Dimmitt, K. (2020). Massive Graviton Spectra in Supergravity. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/7906
Chicago Manual of Style (16th Edition):
Dimmitt, Kevin. “Massive Graviton Spectra in Supergravity.” 2020. Masters Thesis, Utah State University. Accessed March 08, 2021.
https://digitalcommons.usu.edu/etd/7906.
MLA Handbook (7th Edition):
Dimmitt, Kevin. “Massive Graviton Spectra in Supergravity.” 2020. Web. 08 Mar 2021.
Vancouver:
Dimmitt K. Massive Graviton Spectra in Supergravity. [Internet] [Masters thesis]. Utah State University; 2020. [cited 2021 Mar 08].
Available from: https://digitalcommons.usu.edu/etd/7906.
Council of Science Editors:
Dimmitt K. Massive Graviton Spectra in Supergravity. [Masters Thesis]. Utah State University; 2020. Available from: https://digitalcommons.usu.edu/etd/7906
Universiteit Utrecht
17.
Herger, Ivan-Sergej.
BPS Extensions and Gaugings of Supersymmetric Field Theories.
Degree: 2003, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/697
► Supersymmetry has played an important role in theoretical physics for the last thirty years. In the quest for unification of the fundamental interactions, supersymmetry provides…
(more)
▼ Supersymmetry has played an important role in theoretical physics for the last thirty years. In the quest for unification of the fundamental interactions, supersymmetry provides the framework that links two seemingly unrelated kinds of particles, namely bosons and fermions. Supersymmetry is a vital ingredient for the construction of string theories, which in turn are the building blocks of a conceived fundamental theory of nature, so-called M-theory.
The fundamental degrees of freedom of M-theory are not yet known. M-theory is only defined as a theory that, in certain limits, coincides with the known string theories or with supergravity theories. In the limit of low-energy interactions, i.e. at energies much smaller than the Planck mass M-theory is described in terms of supersymmetric gauge theories and supergravity theories. In order to find the correct description of M-theory, it is vital to further explore new features of the effective low-energy theories. In this thesis, we study two different extensions of supergravity theories in an attempt to gain new insights into the nature of M-theory. One possibility for extending a supersymmetric field theory is to couple the original, massless theory to massive BPS multiplets. The second possibility is to construct a gauged supergravity theory by extending the abelian gauge symmetry of a supergravity theory to a non-abelian symmetry.
Subjects/Keywords: Natuur- en Sterrenkunde; supersymmetry; supergravity; yang-mills theory; bps-extended supergravity; gauged supergravity
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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Manager
APA (6th Edition):
Herger, I. (2003). BPS Extensions and Gaugings of Supersymmetric Field Theories. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/697
Chicago Manual of Style (16th Edition):
Herger, Ivan-Sergej. “BPS Extensions and Gaugings of Supersymmetric Field Theories.” 2003. Doctoral Dissertation, Universiteit Utrecht. Accessed March 08, 2021.
http://dspace.library.uu.nl:8080/handle/1874/697.
MLA Handbook (7th Edition):
Herger, Ivan-Sergej. “BPS Extensions and Gaugings of Supersymmetric Field Theories.” 2003. Web. 08 Mar 2021.
Vancouver:
Herger I. BPS Extensions and Gaugings of Supersymmetric Field Theories. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2003. [cited 2021 Mar 08].
Available from: http://dspace.library.uu.nl:8080/handle/1874/697.
Council of Science Editors:
Herger I. BPS Extensions and Gaugings of Supersymmetric Field Theories. [Doctoral Dissertation]. Universiteit Utrecht; 2003. Available from: http://dspace.library.uu.nl:8080/handle/1874/697
18.
Herger, Ivan-Sergej.
BPS Extensions and Gaugings of Supersymmetric Field Theories.
Degree: 2003, University Utrecht
URL: https://dspace.library.uu.nl/handle/1874/697
;
URN:NBN:NL:UI:10-1874-697
;
1874/697
;
URN:NBN:NL:UI:10-1874-697
;
https://dspace.library.uu.nl/handle/1874/697
► Supersymmetry has played an important role in theoretical physics for the last thirty years. In the quest for unification of the fundamental interactions, supersymmetry provides…
(more)
▼ Supersymmetry has played an important role in theoretical physics for the last thirty years. In the quest for unification of the fundamental interactions, supersymmetry provides the framework that links two seemingly unrelated kinds of particles, namely bosons and fermions. Supersymmetry is a vital ingredient for the construction of string theories, which in turn are the building blocks of a conceived fundamental theory of nature, so-called M-theory.
The fundamental degrees of freedom of M-theory are not yet known. M-theory is only defined as a theory that, in certain limits, coincides with the known string theories or with supergravity theories. In the limit of low-energy interactions, i.e. at energies much smaller than the Planck mass M-theory is described in terms of supersymmetric gauge theories and supergravity theories. In order to find the correct description of M-theory, it is vital to further explore new features of the effective low-energy theories. In this thesis, we study two different extensions of supergravity theories in an attempt to gain new insights into the nature of M-theory. One possibility for extending a supersymmetric field theory is to couple the original, massless theory to massive BPS multiplets. The second possibility is to construct a gauged supergravity theory by extending the abelian gauge symmetry of a supergravity theory to a non-abelian symmetry.
Subjects/Keywords: supersymmetry; supergravity; yang-mills theory; bps-extended supergravity; gauged supergravity
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Herger, I. (2003). BPS Extensions and Gaugings of Supersymmetric Field Theories. (Doctoral Dissertation). University Utrecht. Retrieved from https://dspace.library.uu.nl/handle/1874/697 ; URN:NBN:NL:UI:10-1874-697 ; 1874/697 ; URN:NBN:NL:UI:10-1874-697 ; https://dspace.library.uu.nl/handle/1874/697
Chicago Manual of Style (16th Edition):
Herger, Ivan-Sergej. “BPS Extensions and Gaugings of Supersymmetric Field Theories.” 2003. Doctoral Dissertation, University Utrecht. Accessed March 08, 2021.
https://dspace.library.uu.nl/handle/1874/697 ; URN:NBN:NL:UI:10-1874-697 ; 1874/697 ; URN:NBN:NL:UI:10-1874-697 ; https://dspace.library.uu.nl/handle/1874/697.
MLA Handbook (7th Edition):
Herger, Ivan-Sergej. “BPS Extensions and Gaugings of Supersymmetric Field Theories.” 2003. Web. 08 Mar 2021.
Vancouver:
Herger I. BPS Extensions and Gaugings of Supersymmetric Field Theories. [Internet] [Doctoral dissertation]. University Utrecht; 2003. [cited 2021 Mar 08].
Available from: https://dspace.library.uu.nl/handle/1874/697 ; URN:NBN:NL:UI:10-1874-697 ; 1874/697 ; URN:NBN:NL:UI:10-1874-697 ; https://dspace.library.uu.nl/handle/1874/697.
Council of Science Editors:
Herger I. BPS Extensions and Gaugings of Supersymmetric Field Theories. [Doctoral Dissertation]. University Utrecht; 2003. Available from: https://dspace.library.uu.nl/handle/1874/697 ; URN:NBN:NL:UI:10-1874-697 ; 1874/697 ; URN:NBN:NL:UI:10-1874-697 ; https://dspace.library.uu.nl/handle/1874/697
19.
Baguet, Arnaud.
Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité.
Degree: Docteur es, Physique, 2017, Lyon
URL: http://www.theses.fr/2017LYSEN022
► Dans cette thèse, nous présentons des avancements récents en Théorie des Champs Doubles (TCD) et Théories des Champs Exceptionnels (TCE). Ces théories ont la particularité…
(more)
▼ Dans cette thèse, nous présentons des avancements récents en Théorie des Champs Doubles (TCD) et Théories des Champs Exceptionnels (TCE). Ces théories ont la particularité d’être des reformulations de supergravité dans lesquelles les symétries de dualité sont explicites avant toute réduction dimensionnelle. Ces reformulations se basent sur la définition d’un espace-temps étendu qui géométrise le groupe de T-dualité en TCD et les groupes exceptionnels de U-dualité en TCE. Tous les champs de cet espace sont soumis à une contrainte de section qui restreint leur dépendance en coordonnées. Il existe plusieurs solutions à la contrainte de section, qui correspondent donc à des théories différentes. Dans ce sens, le formalisme des théories des champs étendues amène à une unification de ces théories. De plus, grâce à un outil spécifique aux théories des champs étendues, l’ansatz de Scherk-Schwarz généralisé, il est possible de réécrire les ansatz compliqué de type Kaluza-Klein en supergravité sous une forme élégante et compacte: un produit matriciel en dimensions supérieures. Ici, nous présentons plusieurs exemples de l’efficacité de l’ansatz de Scherk-Schwarz généralisé. En particulier, nous prouvons deux conjectures concernant les troncations cohérentes: la réduction dite “de Pauli” de la corde bosonique ainsi que la supergravité de type IIB sur AdS5 x S5. La dernière application de cet ansatz concerne la théorie de type IIB généralisée, apparue récemment dans l’étude des système intégrables, et son plongement dans la TCE E6(6). Enfin, nous présentons la complétion supersymétrique de la TCE E8(8) bosonique.
In this thesis, recent developments in Double Field Theory (DFT) and Exceptional Field Theory (EFT) are presented. They are reformulation of supergravity in which duality symmetries are made manifest before dimensional reduction. This is achieved through the definition of an extended spacetime that “geometrises” the T-duality group O(d,d) in DFT and exceptional U-duality groups in EFT. All functions on this extended space are subject to a covariant `section constraint', whose solutions then restrict the coordinates dependency of the fields. There exist different solutions to the section constraint that correspond to different theories. In this sense, different theories are unified within the formalism of extended field theories. Moreover, extended field theories possess a powerful tool to study compactifications: the generalised Scherk-Schwarz ansatz.Here, we present several examples of the effectiveness of the generalised Scherk-Schwarz ansatz. In particular, we proved two conjectures regarding consistent truncations: the so-called Pauli reduction of the bosonic string on group manifolds and type IIB supergravity on AdS5 x S5. Another application is presented on the embedding of generalised type IIB within the E6(6) EFT, which recently appeared in the study of integrable systems.Finally, we present the supersymmetric completion of the bosonic E8(8) EFT.
Advisors/Committee Members: Samtleben, Henning (thesis director).
Subjects/Keywords: Supergravité; Dualité; Supersymétrie; Troncation cohérente; Modèles de supergravité; Supergravity; String duality; Supersymmetry; Consistent Truncation; Supergravity Models
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APA (6th Edition):
Baguet, A. (2017). Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2017LYSEN022
Chicago Manual of Style (16th Edition):
Baguet, Arnaud. “Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité.” 2017. Doctoral Dissertation, Lyon. Accessed March 08, 2021.
http://www.theses.fr/2017LYSEN022.
MLA Handbook (7th Edition):
Baguet, Arnaud. “Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité.” 2017. Web. 08 Mar 2021.
Vancouver:
Baguet A. Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité. [Internet] [Doctoral dissertation]. Lyon; 2017. [cited 2021 Mar 08].
Available from: http://www.theses.fr/2017LYSEN022.
Council of Science Editors:
Baguet A. Exceptional Field Theory and Supergravity : Théorie des Champs Exceptionnels et Supergravité. [Doctoral Dissertation]. Lyon; 2017. Available from: http://www.theses.fr/2017LYSEN022
Universiteit Utrecht
20.
Katmadas, S.
Extremal black holes in N=2 supergravity.
Degree: 2011, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/205606
► An explanation for the entropy of black holes has been an outstanding problem in recent decades. A special case where this is possible is that…
(more)
▼ An explanation for the entropy of black holes has been an outstanding problem in recent decades. A special case where this is possible is that of extremal black holes in N=2
supergravity in four and five dimensions. The best developed case is for black holes preserving some supersymmetry (BPS), which are well understood in the context of the lowest order two derivative action. For ungauged theories, one can use the experience gained from this example to study the effect of higher order corrections on BPS solutions or to construct nonsupersymmetric black holes. We first present a detailed discussion of the four derivative terms allowed by N=2 supersymmetry in four and five dimensions respectively. Each of these invariants is parametrised by an arbitrary function, which can be fixed when one considers the embedding in a microscopic theory, such as string theory. We present a detailed investigation of the possible N=2 backgrounds, described in a unified way for both black holes and rings. Restricting to the class of theories obtained by string theoretic models, we connect to known microscopic constructions of black holes. The end result is a successful match of the entropy to the string theory counting for black rings and for large black holes. Issues remain with small black holes in the five-dimensional case. Beyond supersymmetric solutions, we discuss some recent results on the construction of non-BPS solutions in N=2 theories, emphasising the description in terms of first order equations and the attractor mechanism. We introduce a special class of five-dimensional solutions which are supersymmetric on local patches of spacetime, but nevertheless completely break supersymmetry globally. The new solutions obtained turn out to allow for a number of features that are present in generic extremal solutions, but forbidden in the supersymmetric case. Based on this fact, we then go on to propose a framework for constructing more general extremal solutions, including rotating black holes.
Advisors/Committee Members: Wit, B.Q.P.J. de.
Subjects/Keywords: Natuur- en sterrenkunde; black holes; supergravity; string theory
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APA (6th Edition):
Katmadas, S. (2011). Extremal black holes in N=2 supergravity. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/205606
Chicago Manual of Style (16th Edition):
Katmadas, S. “Extremal black holes in N=2 supergravity.” 2011. Doctoral Dissertation, Universiteit Utrecht. Accessed March 08, 2021.
http://dspace.library.uu.nl:8080/handle/1874/205606.
MLA Handbook (7th Edition):
Katmadas, S. “Extremal black holes in N=2 supergravity.” 2011. Web. 08 Mar 2021.
Vancouver:
Katmadas S. Extremal black holes in N=2 supergravity. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2011. [cited 2021 Mar 08].
Available from: http://dspace.library.uu.nl:8080/handle/1874/205606.
Council of Science Editors:
Katmadas S. Extremal black holes in N=2 supergravity. [Doctoral Dissertation]. Universiteit Utrecht; 2011. Available from: http://dspace.library.uu.nl:8080/handle/1874/205606
21.
Reys, V.
Quantum Black Hole Entropy and Localization in Supergravity.
Degree: 2016, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/334196
► In this thesis, we examine in detail the notion of black hole entropy in Quantum Field Theories, with a specific focus on supersymmetric black holes…
(more)
▼ In this thesis, we examine in detail the notion of black hole entropy in Quantum Field Theories, with a specific focus on supersymmetric black holes and the perturbative and non-perturbative quantum corrections to the classical area-law of Bekenstein-Hawking, where the latter stipulates that the thermodynamic entropy of a black hole is proportional to the surface area of its event horizon. To examine such corrections, we employ the formalism of Sen's Quantum Entropy Function where the complete quantum entropy of a supersymmetric black hole in theories of
Supergravity is defined as a path-integral in the near-horizon region of the black hole. Evaluation of this path-integral can then be conducted exactly using localization computation techniques. Such techniques reduce the evaluation of the infinite dimensional path-integral to the evaluation of a classical, finite-dimensional integral over the so-called localizing manifold, and a one-loop correction stemming from quantum field fluctuations orthogonal to this localizing manifold. Due to the exactness of the localization argument, the results obtained in this manner are therefore formally expected to re-sum all perturbative and non-perturbative corrections to the classical area-law, and thus connect to string-theoretic predictions, where supersymmetric black holes can be described as D-branes interacting quantum mechanically (following the original insight of Strominger and Vafa). We investigate such connections in detail for specific supersymmetric black holes in the hopes of strengthening a Boltzmann-type interpretation of their thermodynamic entropy as arising from the degeneracies of the microscopic gravitational constituents (the D-branes). We find that this picture holds very precisely for two types of black holes preserving four real supercharges in both four-dimensional N=8 (maximally supersymmetric) and N=4 (half-maximally supersymmetric) string theories and supergravities. From a broader point of view, such results can be interpreted as providing important examples where
supergravity theories encode the complete low-energy dynamics of string theories and provide a consistent effective picture. Some interesting connections to the mathematical theory of modular forms and mock modular forms are also exhibited.
Advisors/Committee Members: de Wit, Bernard, Murthy, Sameer.
Subjects/Keywords: Supergravity; String Theory; Quantum Black Hole; Entropy; Jacobi Forms
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APA (6th Edition):
Reys, V. (2016). Quantum Black Hole Entropy and Localization in Supergravity. (Doctoral Dissertation). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/334196
Chicago Manual of Style (16th Edition):
Reys, V. “Quantum Black Hole Entropy and Localization in Supergravity.” 2016. Doctoral Dissertation, Universiteit Utrecht. Accessed March 08, 2021.
http://dspace.library.uu.nl:8080/handle/1874/334196.
MLA Handbook (7th Edition):
Reys, V. “Quantum Black Hole Entropy and Localization in Supergravity.” 2016. Web. 08 Mar 2021.
Vancouver:
Reys V. Quantum Black Hole Entropy and Localization in Supergravity. [Internet] [Doctoral dissertation]. Universiteit Utrecht; 2016. [cited 2021 Mar 08].
Available from: http://dspace.library.uu.nl:8080/handle/1874/334196.
Council of Science Editors:
Reys V. Quantum Black Hole Entropy and Localization in Supergravity. [Doctoral Dissertation]. Universiteit Utrecht; 2016. Available from: http://dspace.library.uu.nl:8080/handle/1874/334196
22.
Guillen Quiroz, Luis Max [UNESP].
D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro.
Degree: 2016, Universidade Estadual Paulista
URL: http://hdl.handle.net/11449/144185
► E bem conhecido como descrever as teor´ıas de Super Yang-Mills (SYM) ´ em D = 10 dimens˜oes e Supergravidade (SG) em D = 11 dimens˜oes…
(more)
▼ E bem conhecido como descrever as teor´ıas de Super Yang-Mills (SYM) ´ em D = 10 dimens˜oes e Supergravidade (SG) em D = 11 dimens˜oes no superespa¸co e via seus campos componentes. No entanto, uma nova vers˜ao desses modelos foi formulada nos finais da d´ecada de 2000, quando Martin Cederwall usando o formalismo de supercampo de espinor puro conseguiu construir uma pure spinor a¸c˜ao, que a diferen¸ca das anteriores abordagens, esta n˜ao precisa de impor constraints a m˜ao, proporciona uma descri¸c˜ao completa de cada modelo (no sentido do formalismo BV) e as equa¸c˜oes do movimento obtidas a partir do respectivo principio de a¸c˜ao s˜ao supersim´etricas. Neste trabalho iremos explicar toda a base necess´aria para entender a constru¸c˜ao de tal formalismo. Para esse prop´osito, come¸caremos estudando a teoria SYM (abeliana) em D = 10 em suas formula¸c˜oes em componentes e no superespa¸co. Usaremos a a¸c˜ao da formula¸c˜ao on-shell para quantizar a teoria via o formalismo de Batalin-Vilkovisky (BV). Seguiremos para SG em D = 11 e estudaremos suas formula¸c˜oes em componentes e no superespa¸co. Ent˜ao iremos mostrar que podemos obter o mesmo espectro f´ısico de SYM em D = 10 (SG em D = 11) estudando a superpart´ıcula em D = 10 (D = 11) na calibre do cone de luz. De forma a ter uma quantiza¸c˜ao covariante desses modelos, introduziremos a superpart´ıcula de espinor puro em D = 10 (D = 11), a qual possui o operador BRST usual de espinor puro (Q = λD). Verificar-se-´a que a cohomologia desse operador coincidir´a com a teoria SYM em D=10 (SG em D=11) linearizada depois de ser quantizada via o formalismo BV. Esse resultado introduzir´a naturalmente a ideia de construir a¸c˜oes usando um supercampo de espinor puro. Finalmente, explicaremos como o formalismo de supercampo de espinor puro surge nesse contexto e como podemos us´a-lo para construir a¸c˜oes manifestamente supersim´etricas para SYM em D=10 e SG em D=11.
It is well known how to describe the D = 10 (SYM) Super Yang-Mills and D = 11 (SG) Supergravity theories on superspace and by component fields. However, a new version of these models was formulated in the late 2000, when Martin Cederwall using the pure spinor superfield formalism achieved to construct a pure spinor action for these theories, which unlike the previously mentioned approaches, this does not require to impose any constraint by hand, provides a full description of each model (in the BV sense) and the equations of motion coming from the corresponding action principle are supersymmetric. In this work we will explain all the background required to understand the construction of this action. For this purpose, we will start with the D=10 (abelian) SYM theory in its component and superspace formulations. We will use the action of the on-shell formulation to quantize the theory via the Batalin-Vilkovisky framework. We will move to D=11 supergravity and study its component and superspace formulations. Then we will show that we can obtain the same physical spectrum of D = 10 SYM (D = 11 SG) by studying the D…
Advisors/Committee Members: Berkovits, Nathan [UNESP], Universidade Estadual Paulista (UNESP).
Subjects/Keywords: Supersimetría; Supergravidade; Espinores Puros; Super Yang Mills; Supersymmetry; Supergravity; Pure spinors
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APA (6th Edition):
Guillen Quiroz, L. M. [. (2016). D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro. (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/144185
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Guillen Quiroz, Luis Max [UNESP]. “D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro.” 2016. Thesis, Universidade Estadual Paulista. Accessed March 08, 2021.
http://hdl.handle.net/11449/144185.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Guillen Quiroz, Luis Max [UNESP]. “D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro.” 2016. Web. 08 Mar 2021.
Vancouver:
Guillen Quiroz LM[. D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro. [Internet] [Thesis]. Universidade Estadual Paulista; 2016. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/11449/144185.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Guillen Quiroz LM[. D=10 Super Yang Mills, D=11 Supergravidade e o Formalismo de Supercampo de Espinor Puro. [Thesis]. Universidade Estadual Paulista; 2016. Available from: http://hdl.handle.net/11449/144185
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Cornell University
23.
Marsh, C.M. David.
Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology.
Degree: PhD, Physics, 2012, Cornell University
URL: http://hdl.handle.net/1813/31013
► Stabilized string compactifications give rise to effective four-dimensional supergravities at energies below the compactification scale, and in this thesis, we investigate how these theories may…
(more)
▼ Stabilized string compactifications give rise to effective four-dimensional supergravities at energies below the compactification scale, and in this thesis, we investigate how these theories may be constrained by physical observables from particle physics and cosmology. A number of physically well-motivated scenarios such as cosmic inflation, intermediate-scale supersymmetry breaking, and a particular mechanism for baryogenesis, all rely on the form of the nonrenormalizable, Planck-mass suppressed operators in the Lagrangian, which can be computed only in a quantum theory of gravity. With this motivation, we investigate supersymmetry breaking in stabilized compactifications of type IIB string theory, and find that experimental constraints from flavor physics impose severe restrictions on certain interesting compactification scenarios. Moreover, we point out that the Affleck-Dine scenario is incompatible with some models of string inflation, e.g. brane inflation in warped throats, and we show that versions of Affleck-Dine baryogenesis with non-trivial field dynamics during observable inflation induce features in the spectrum of the cosmic microwave background radiation, which may be observable by upcoming satellite experiments, such as Planck. Furthermore, there is compelling cosmological evidence for a 'dark energy' currently dominating the energy density of the universe, but accommodating this fact by direct constructions of de Sitter string vacua has proved challenging. Here, we use random matrix theory to show that in super- gravities with many scalar fields, an exponentially small fraction of the de Sitter critical points are metastable vacua. This result significantly affects the counting of de Sitter vacua in the string landscape.
Advisors/Committee Members: McAllister, Liam (chair), Thom-Levy, Julia (committee member), Tye, Sze-Hoi Henry (committee member).
Subjects/Keywords: high-energy theory; string theory; supergravity; phenomenology; cosmology; random matrix theory
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APA (6th Edition):
Marsh, C. M. D. (2012). Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/31013
Chicago Manual of Style (16th Edition):
Marsh, C M David. “Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology.” 2012. Doctoral Dissertation, Cornell University. Accessed March 08, 2021.
http://hdl.handle.net/1813/31013.
MLA Handbook (7th Edition):
Marsh, C M David. “Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology.” 2012. Web. 08 Mar 2021.
Vancouver:
Marsh CMD. Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology. [Internet] [Doctoral dissertation]. Cornell University; 2012. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1813/31013.
Council of Science Editors:
Marsh CMD. Strings To Reality: Effective Supergravity For Cosmology And Particle Phenomenology. [Doctoral Dissertation]. Cornell University; 2012. Available from: http://hdl.handle.net/1813/31013
University of Michigan
24.
Carvalho, Pedro.
Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates.
Degree: PhD, Physics, 2016, University of Michigan
URL: http://hdl.handle.net/2027.42/120742
► A thorough understanding of quantum gravity is one of the greatest challenges of modern theoretical physics, given the incompatibility of general relativity and quantum mechanics.…
(more)
▼ A thorough understanding of quantum gravity is one of the greatest challenges of modern theoretical physics, given the incompatibility of general relativity and quantum mechanics. In order to address this challenge many physicists compute quantum corrections to classical gravitational backgrounds as means towards a full quantum description of gravitational phenomena.
In this work we focus on developing efficient techniques to compute such quantum corrections. The standard techniques in the literature can be quite involved since they include contributions from unphysical field components that decouple and do not affect the final result. We propose a novel streamlined method in which the quantum corrections at one loop are computed exclusively from physical states.
A key element of our method is the identification of states called boundary modes. These states are pure gauge configurations with non-normalizable gauge parameters, a subtlety that renders them physical albeit pure gauge. Boundary modes are a central element of our method due to their non-trivial nature and since we choose to work exclusively with physical states.
We analyze the characteristics of these boundary modes in detail and use the proposed method to compute logarithmic corrections to extremal four dimensional black holes with N = 2 or more supersymmetries, as well as logarithmic corrections to
supergravity in AdS2 x S**2.
We then use our new method to compute the one loop divergence of N =8
supergravity in AdS4. We show that the divergence is topological in nature and is due to the presence of boundary modes in the
supergravity theory.
Advisors/Committee Members: Larsen, Finn (committee member), Gultekin, Kayhan (committee member), Elvang, Henriette (committee member), Liu, James T (committee member), Riles, Keith (committee member).
Subjects/Keywords: Black hole entropy; Quantum gravity; Supergravity; Quantum black holes; Physics; Science
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APA ·
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MLA ·
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Export
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Manager
APA (6th Edition):
Carvalho, P. (2016). Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/120742
Chicago Manual of Style (16th Edition):
Carvalho, Pedro. “Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates.” 2016. Doctoral Dissertation, University of Michigan. Accessed March 08, 2021.
http://hdl.handle.net/2027.42/120742.
MLA Handbook (7th Edition):
Carvalho, Pedro. “Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates.” 2016. Web. 08 Mar 2021.
Vancouver:
Carvalho P. Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates. [Internet] [Doctoral dissertation]. University of Michigan; 2016. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/2027.42/120742.
Council of Science Editors:
Carvalho P. Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates. [Doctoral Dissertation]. University of Michigan; 2016. Available from: http://hdl.handle.net/2027.42/120742
25.
Karthik, Inbasekar.
Attractor mechanism in gauged supergravity; -.
Degree: physical Sciences, 2013, INFLIBNET
URL: http://shodhganga.inflibnet.ac.in/handle/10603/36985
None
Appendix p.157 - 164 and Bibliography p.165 -
182
Advisors/Committee Members: Tripathy, Prasanta.Subjects/Keywords: Attractor; gauged; mechanism; supergravity
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APA (6th Edition):
Karthik, I. (2013). Attractor mechanism in gauged supergravity; -. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/36985
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Karthik, Inbasekar. “Attractor mechanism in gauged supergravity; -.” 2013. Thesis, INFLIBNET. Accessed March 08, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/36985.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Karthik, Inbasekar. “Attractor mechanism in gauged supergravity; -.” 2013. Web. 08 Mar 2021.
Vancouver:
Karthik I. Attractor mechanism in gauged supergravity; -. [Internet] [Thesis]. INFLIBNET; 2013. [cited 2021 Mar 08].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/36985.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Karthik I. Attractor mechanism in gauged supergravity; -. [Thesis]. INFLIBNET; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/36985
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
26.
Ozkan, Mehmet.
Supersymmetric Curvature Squared Invariants in Five and Six Dimensions.
Degree: PhD, Physics, 2013, Texas A&M University
URL: http://hdl.handle.net/1969.1/151223
► In this dissertation, we investigatethe supersymmetric completion of curvature squared invariants in five and six dimensionsas well as the construction of off-shell Poincar´e supergravities and…
(more)
▼ In this dissertation, we investigatethe supersymmetric completion of curvature squared invariants in five and six dimensionsas well as the construction of off-shell Poincar´e supergravities and their matter couplings.
We use superconformal calculus in fiveand six dimensions, which are an off- shell formalisms. In fivedimensions,there are twoinequivalentWeyl multiplets: the standard Weyl multiplet and the dilaton Weyl multiplet.The main difference betweenthese twoWeyl multiplets is thatthe dilaton Weyl multipletcontains a graviphoton in its field content whereas the standard Weyl multiplet does not.A
supergravity theory based on the standard Weyl multiplet requires coupling to an external vector multiplet. In five dimensions,we construct two new formulations for 2-derivative off-shell Poincar´e
supergravity theories and present the internally gauged models.
We also construct supersymmetric completions of all curvature squared terms in five dimensional
supergravity with eight supercharges.Adopting the dilaton Weyl multiplet, we construct a Weyl squared invariant, the supersymmetric combination of Gauss-Bonnet combination and the Ricci scalar squared invariant as well as all vector multiplets coupled curvature squared invariants. Since the minimal off-shell supersymmetric Riemann tensor squared invariant has been obtained before, both the minimal off-shell and the vector multiplets coupled curvature squared invariants in the dilation Weyl multiplet are complete. We also constructedan off-shell Ricci scalar squared invariant utilizing the standard Weyl multiplet.The supersymmetric Ricci scalar squared in the standard Weyl multiplet is coupled to n number of vector multiplets by construction, and it deforms the very special geometry. We found that in the supersymmetric AdS5 vacuum, the very special geometry defined on the moduli space is modified in a simple way. We study the vacuum solutions with AdS2 × S3 and AdS3 × S2 structures. We also analyze the spectrum around a maximally supersymmetric Minkowski5, and study the magnetic string and electric black hole.
Finally, we generalize our procedure for the construction of an off-shell Ricci scalar squared invariant in five dimensions to N = (1, 0), D = 6
supergravity.
Advisors/Committee Members: Sezgin, Ergin (advisor), Pope, Christopher (committee member), Kamon, Teruki (committee member), Fulling, Stephen A. (committee member).
Subjects/Keywords: Superconformal Tensor Calculus; Supergravity; Higher Derivative; Gauss-Bonnet
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APA (6th Edition):
Ozkan, M. (2013). Supersymmetric Curvature Squared Invariants in Five and Six Dimensions. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/151223
Chicago Manual of Style (16th Edition):
Ozkan, Mehmet. “Supersymmetric Curvature Squared Invariants in Five and Six Dimensions.” 2013. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021.
http://hdl.handle.net/1969.1/151223.
MLA Handbook (7th Edition):
Ozkan, Mehmet. “Supersymmetric Curvature Squared Invariants in Five and Six Dimensions.” 2013. Web. 08 Mar 2021.
Vancouver:
Ozkan M. Supersymmetric Curvature Squared Invariants in Five and Six Dimensions. [Internet] [Doctoral dissertation]. Texas A&M University; 2013. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1969.1/151223.
Council of Science Editors:
Ozkan M. Supersymmetric Curvature Squared Invariants in Five and Six Dimensions. [Doctoral Dissertation]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/151223
Texas A&M University
27.
Jong, Der-Chyn.
Aspects of 7d and 6d gauged supergravities.
Degree: PhD, Physics, 2009, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2110
► We determine the conditions under which half-maximal matter coupled gauged supergravity in seven dimensions admits a chiral circle reduction to yield a matter coupled gauged…
(more)
▼ We determine the conditions under which half-maximal matter coupled gauged
supergravity
in seven dimensions admits a chiral circle reduction to yield a matter coupled
gauged
supergravity in six dimensions with 8 real supersymmetry. Solving these
conditions we nd that the SO(2; 2) and SO(3; 1) gauged 7D supergravities give a
U(1)R, and the SO(2; 1) gauged 7D
supergravity gives an Sp(1)R gauged chiral 6D
supergravity coupled to certain matter multiplets. In the 6D models obtained, with
or without gauging, we show that the scalar fields of the matter sector parametrize
the coset SO(p + 1; 4)=SO(p + 1) SO(4), with the (p + 3) axions corresponding to
its abelian isometries.
We then derive the necessary and sufficient conditions for the existence of a Killing
spinor in N = (1; 0) gauge 6D
supergravity coupled to a single tensor multiplet, vector
multiplets and hypermultiplets. We show that these conditions imply most of the eld
equations. We also determine the remaining equations that need to be satised by an
exact solution. In this framework, we nd a novel 1=8 supersymmetric dyonic string
solution with nonvanishing hypermultiplet scalars. The activated scalars parametrize
a 4 dimensional submanifold of a quaternionic hyperbolic ball. The key point is that
we employ an identity map between this submanifold and the internal space transverse
to the string worldsheet, thereby nding a higher dimensional generalization of Gell-
Mann-Zweibach tear-drop solution.
Advisors/Committee Members: Sezgin, Ergin (advisor), Arnowitt, Richard L. (committee member), Fulling, Stephen A. (committee member), Pope, Christopher N. (committee member).
Subjects/Keywords: gauged supergravity; supersymmetric solution
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jong, D. (2009). Aspects of 7d and 6d gauged supergravities. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2110
Chicago Manual of Style (16th Edition):
Jong, Der-Chyn. “Aspects of 7d and 6d gauged supergravities.” 2009. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2110.
MLA Handbook (7th Edition):
Jong, Der-Chyn. “Aspects of 7d and 6d gauged supergravities.” 2009. Web. 08 Mar 2021.
Vancouver:
Jong D. Aspects of 7d and 6d gauged supergravities. [Internet] [Doctoral dissertation]. Texas A&M University; 2009. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2110.
Council of Science Editors:
Jong D. Aspects of 7d and 6d gauged supergravities. [Doctoral Dissertation]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2110
Penn State University
28.
Pavlyk, Oleksandr.
Minimal Representations of U-duality Groups
.
Degree: 2008, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/6822
► Equations of motion of eleven dimensional supergravity compactified to d dimensions on (11-d)-torus have a hidden non-compact global symmetry group mathrm{E}11-d(11-d), being examples of U-duality…
(more)
▼ Equations of motion of eleven dimensional
supergravity compactified to d dimensions on
(11-d)-torus have a hidden non-compact global symmetry group
mathrm{E}
11-d(11-d), being examples of U-duality groups. U-duality
groups are conjectured to be broken to their discrete subgroups
mathrm{E}
11-d(11-d) left( ℤ
ight) in the non-perturbatve M-theory.
In this thesis we study algebraic structures and unitary realizations
of U-duality groups, in particular those arising from Maxwell-Einstein
supergravity (MESGT) theories in d=5, 4, 3 dimensions. These
algebraic structures and their related symmetry groups arise also in
the study of generalized space-times defined by Jordan algebras and
related algebraic constructs. After reviewing the previous work on the
Lorentz groups and conformal groups of spacetimes defined by Jordan
algebras we study their quasi-conformal groups. In particular we give
the geometric realization of these quasi-conformal groups in a basis
covariant with respect to their generalized Lorentz groups.
Minimal realization of U-duality groups associated with d=3
supergravities is constructed as an extension of conformal quantum mechanics
using ideas and methods pioneered by G"unaydin, Koepsell and Nicolai.
Minimal unitary representations of such U-duality groups are presented
ellucidating connection with alternative construction of minimal
representations by Kazhdan, Pioline and Waldron.
Advisors/Committee Members: Murat Gunaydin, Committee Chair/Co-Chair, Richard Wallace Robinett, Committee Member, Vincent Henry Crespi, Committee Member, Victor Nistor, Committee Member.
Subjects/Keywords: representations; U-duality; supergravity
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Pavlyk, O. (2008). Minimal Representations of U-duality Groups
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/6822
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pavlyk, Oleksandr. “Minimal Representations of U-duality Groups
.” 2008. Thesis, Penn State University. Accessed March 08, 2021.
https://submit-etda.libraries.psu.edu/catalog/6822.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pavlyk, Oleksandr. “Minimal Representations of U-duality Groups
.” 2008. Web. 08 Mar 2021.
Vancouver:
Pavlyk O. Minimal Representations of U-duality Groups
. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Mar 08].
Available from: https://submit-etda.libraries.psu.edu/catalog/6822.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pavlyk O. Minimal Representations of U-duality Groups
. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/6822
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Penn State University
29.
McReynolds, Sean.
Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
.
Degree: 2008, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/6065
► Five-dimensional N=2 Yang-Mills-Einstein supergravity and its couplings to hyper and tensor multiplets are considered on an orbifold spacetime of the form M4 X S1/Gamma, where…
(more)
▼ Five-dimensional N=2 Yang-Mills-Einstein
supergravity and its couplings to hyper and tensor multiplets are considered on an orbifold spacetime of the form M
4 X S
1/Gamma, where Gamma is the discrete group Z
2 or Z
2XZ
2. As is well known in such cases, supersymmetry is broken to N=1 on the orbifold fixed planes, and chiral 4D theories can be obtained from bulk hypermultiplets (or from the coupling of fixed-plane supported fields). Five-dimensional gauge symmetries are broken by boundary conditions for the fields, which are equivalent to some set of Gamma-parity assignments in the orbifold theory, allowing for arbitrary rank reduction. Furthermore, Wilson lines looping from one boundary to the other can break bulk gauge groups, or give rise to vacuum expectation values for scalars on the boundaries, which can result in spontaneous breaking of boundary gauge groups. The broken gauge symmetries do not survive as global symmetries of the low energy theories below the compactification scale due to 4D minimal couplings to gauge fields. Axionic fields are a generic feature, just as in any compactification of M-theory (or string theory for that matter), and we exhibit the form of this field and its role as the QCD axion, capable of resolving the strong-CP problem. The main motivation for the orbifold theories here is taken to be orbifold-GUTs, wherein a unified gauge group is sought in higher dimensions while allowing the orbifold reduction to handle problems such as rapid proton decay, exotic matter, mass hierarchies, etc. To that end, we discuss the allowable minimal SU(5), SO(10) and E
6 GUT theories with all fields living in five dimensions. It is argued that, within the class of homogeneous quaternionic scalar manifolds characterizing the hypermultiplet couplings in 5D,
supergravity admits a restricted set of theories that yield minimal phenomenological field content. In addition, non-compact gaugings are a novel feature of
supergravity theories, and in particular we consider the example of an SU(5,1) YMESGT in which all of the fields of the theory are connected by local (susy and gauge) transformations that are symmetries of the Lagrangian. Such non-compact gaugings allow a novel type of gauge-Higgs unification in higher dimensions. The possibility of boundary-localized fields is considered only via anomaly arguments. In particular, the theories with a 5D Chern-Simons form in the Lagrangian will give rise to anomaly inflow classically (which is compensated globally in the S
1/Z
2 case). However, compensation locally requires the quantum theory to have a chiral anomaly on the boundary, which can arise if there is an appropriate bulk fermionic field content, or otherwise by the addition of appropriate boundary-supported fermionic fields with minimal coupling to the gauge fields propagating there. Some comments are made regarding the phenomenological features of the models, such as the Yukawa couplings and scalar potentials, which depend on the size of the fifth dimension as well as the…
Advisors/Committee Members: Richard Wallace Robinett, Committee Member, Luen Chau Li, Committee Member, Stephane Coutu, Committee Member, Murat Gunaydin, Committee Chair/Co-Chair.
Subjects/Keywords: orbifold field theories; supergravity; GUTs
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
McReynolds, S. (2008). Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/6065
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
McReynolds, Sean. “Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
.” 2008. Thesis, Penn State University. Accessed March 08, 2021.
https://submit-etda.libraries.psu.edu/catalog/6065.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
McReynolds, Sean. “Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
.” 2008. Web. 08 Mar 2021.
Vancouver:
McReynolds S. Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
. [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Mar 08].
Available from: https://submit-etda.libraries.psu.edu/catalog/6065.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
McReynolds S. Five-dimensional Yang-Mills-Einstein Supergravity on Orbifold Spacetimes: From Phenomenology to M-theory
. [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/6065
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
30.
Rong, Junchen.
Supergravity, AdS/CFT Correspondence and Conformal Bootstrap.
Degree: PhD, Physics, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/157734
► We study the SO(3)D x SO(3)L sector of both the SO(8) and ISO(7) gauged N = 8 supergravity in four dimensions. By uplifting an N…
(more)
▼ We study the SO(3)D x SO(3)L sector of both the SO(8) and ISO(7) gauged N = 8
supergravity in four dimensions. By uplifting an N = 3 critical point of the latter theory, we get a wrapped AdS4 x M6 in ten dimensional massive type IIA
supergravity. The dual three dimensional superconformal Chern-Simons theory is identified through AdS/CFT correspondence. The conjecture is tested by comparing the spin-2 Kaluza-Klein modes and spin-2 operators in the dual CFT, and by comparing the Gravitional Euclidean Action of the gravitational solution and Free Energy of the dual CFT. We review the non-perturbative method to study conformal field theory called “Conformal Bootstrap" and apply it to study CFT's with F4/SU(3) flavor symmetry in 6 - ϵ dimensions. The possibility of applying conformal bootstrap to study AdS/CFT is also discussed.
Advisors/Committee Members: Pope, Christopher N (advisor), Sezgin, Ergin (committee member), Fulling, Stephen A (committee member), Kamon, Teruki (committee member).
Subjects/Keywords: supergravity; AdS/CFT correspondence; conformal field theory; conformal bootstrap
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rong, J. (2016). Supergravity, AdS/CFT Correspondence and Conformal Bootstrap. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/157734
Chicago Manual of Style (16th Edition):
Rong, Junchen. “Supergravity, AdS/CFT Correspondence and Conformal Bootstrap.” 2016. Doctoral Dissertation, Texas A&M University. Accessed March 08, 2021.
http://hdl.handle.net/1969.1/157734.
MLA Handbook (7th Edition):
Rong, Junchen. “Supergravity, AdS/CFT Correspondence and Conformal Bootstrap.” 2016. Web. 08 Mar 2021.
Vancouver:
Rong J. Supergravity, AdS/CFT Correspondence and Conformal Bootstrap. [Internet] [Doctoral dissertation]. Texas A&M University; 2016. [cited 2021 Mar 08].
Available from: http://hdl.handle.net/1969.1/157734.
Council of Science Editors:
Rong J. Supergravity, AdS/CFT Correspondence and Conformal Bootstrap. [Doctoral Dissertation]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/157734
◁ [1] [2] [3] [4] [5] ▶
. 
Open Access Theses and Dissertations
