Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1438
Title: All optical implementation scheme for Quantum Fourier Transform using polarization and orbital angular momentum of light
Authors: Menon P, Akshay
Keywords: Quantum Fourier Transform
orbital angular momentum of light
optical implementation
OAM sorter
Issue Date: 9-Jun-2020
Publisher: IISER Mohali
Abstract: Internal modes of light can be used for efficient realization of any discrete arbitrary unitary matrix. For n s spatial modes and n i internal modes of light, we present a scheme for realizing (n s n i ) × (n s n i ) dimensional Quantum Fourier Transform (QFT) matrix. A generalized scheme for decomposing QFT matrix into physically real- izable matrices corresponding to spatial and internal transformations is developed and then demonstrated for various choices of spatial and internal modes in realizing four-dimensional, eight-dimensional and twelve-dimensional QFT matrices. This de- composition reduces the number of beam splitters required for implementing QFT matrices, with an addition of internal transformations. Furthermore, implementation of the permutation matrices involved in realization of QFT are investigated.
URI: http://hdl.handle.net/123456789/1438
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