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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 1 — Jan. 1, 2010
  • pp: 27–31

Scheme for implementing linear optical quantum iSWAP gate with conventional photon detectors

Hong-Fu Wang, Xiao-Qiang Shao, Yong-Fang Zhao, Shou Zhang, and Kyu-Hwang Yeon  »View Author Affiliations


JOSA B, Vol. 27, Issue 1, pp. 27-31 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000027


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Abstract

A simple scheme is proposed to implement a two-qubit linear optical quantum iSWAP gate that is a universal gate in quantum computation and quantum information processing. By the interference effect of the polarized photons, a quantum iSWAP gate can be achieved with a low success probability ( η 4 32 , with η being the quantum efficiency of photon detectors). The scheme is based only on simple linear optical elements, a pair of two-photon polarization entangled states, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states, which greatly decreases the experimental difficulty of implementing linear optical quantum computation.

© 2009 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: August 25, 2009
Revised Manuscript: October 28, 2009
Manuscript Accepted: November 2, 2009
Published: December 11, 2009

Citation
Hong-Fu Wang, Xiao-Qiang Shao, Yong-Fang Zhao, Shou Zhang, and Kyu-Hwang Yeon, "Scheme for implementing linear optical quantum iSWAP gate with conventional photon detectors," J. Opt. Soc. Am. B 27, 27-31 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-1-27


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