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You searched for +publisher:"University of KwaZulu-Natal" +contributor:("Thomas, Konrad"). One record found.

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University of KwaZulu-Natal

1. [No author]. Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum.

Degree: Physics, 2013, University of KwaZulu-Natal

Standard quantum computation proceeds via the unitary evolution of physical qubits (two-level systems) that carry the information. A remarkably different model is one-way quantum computing where a quantum algorithm is implemented by a set of irreversible measurements on a large array of entangled qubits,, known as the cluster state. The order and sequence of these measurements allow for different algorithms to be implemented. With a large enough cluster state and a method in which to perform single-qubit measurements the desired computation can be realised. We propose a potential implementation of one-way quantum computing using qubits encoded in the orbital angular momentum degree of freedom of single photons. Photons are good carriers of quantum information because of their weak interaction with the environment and the orbital angular momentum of single photons offers access to an infinite-dimensional Hilbert space for encoding information. Spontaneous parametric down-conversion is combined with a series of optical elements to generate a four-photon orbital angular momentum entangled cluster state and single-qubit measurements are carried out by means of digital holography. The proposed set-up, which is based on an experiment that utilised polarised photons, can be used to realise Grover’s search algorithm which performs a search through an unstructured database of four elements. Our application is restricted to a two-dimensional subspace of a multi-dimensional system, but this research facilitates the use of orbital angular momentum qubits for quantum information processing and points towards the usage of photonic qudits (multi-level systems). We also review the application of Dirac notation to paraxial light beams on a classical and quantum level. This formalism is generally employed in quantum mechanics but the analogy with paraxial optics allows us to represent the classical states of light by means of Dirac kets. An analysis of the analogy between the classical and quantum states of light using this formalism, is presented. Advisors/Committee Members: Thomas, Konrad (advisor), Forbes, Andrew (advisor).

Subjects/Keywords: Quantum computers.; Quantum theory.; Photons.; Physics.

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APA (6th Edition):

author], [. (2013). Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum. (Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/9704

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):

author], [No. “Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum. ” 2013. Thesis, University of KwaZulu-Natal. Accessed January 23, 2020. http://hdl.handle.net/10413/9704.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

author], [No. “Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum. ” 2013. Web. 23 Jan 2020.

Vancouver:

author] [. Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum. [Internet] [Thesis]. University of KwaZulu-Natal; 2013. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/10413/9704.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

author] [. Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum. [Thesis]. University of KwaZulu-Natal; 2013. Available from: http://hdl.handle.net/10413/9704

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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