Implementing one-photon three-qubit quantum gates using spatial light modulators
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Abouraddy-2012-Implementing one-photon three-qubit quantum gates.pdf
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Author(s)
Teich, Malvin Carl
Abouraddy, Ayman F.
Giuseppe, G. Di
Yarnall, Timothy M.
Saleh, B. E. A.
Date Issued
November 2012
Journal
Physical Review A
Publisher
American Physical Society
Citation
Abouraddy, A. et al. “Implementing One-photon Three-qubit Quantum Gates Using Spatial Light Modulators.” Physical Review A 86.5 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
Increasing the information-carrying capacity of a single photon may be achieved by utilizing multiple degrees of freedom. We describe here an approach that utilizes two degrees of freedom to encode three qubits per photon: one in polarization and two in the spatial-parity symmetry of the transverse field. In this conception, a polarization-sensitive spatial light modulator corresponds to a three-qubit controlled-unitary gate with one control qubit (polarization) and two target (spatial-parity-symmetry) qubits. We describe the construction of controlled-not (cnot), [superscript n]\ cnot, controlled-phase, and Fredkin gates, and the preparation of one-photon, three-qubit Greenberger-Horne-Zeilinger (GHZ) and W states. This approach enables simple optical implementations of few-qubit tasks in quantum information processing.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.86.050303
