Controlled generation of four-photon polarization-entangled decoherence-free states with conventional photon detectors
JOSA B, Vol. 26, Issue 1, pp. 129-132 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000129
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Abstract
We propose a protocol for the controlled generation of four-photon polarization-entangled decoherence-free states with a certain success probability. The proposed setup involves simple linear optical elements, two single-photon polarzaition entangled states, a pair of two-photon polarization entangled states, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. This makes the protocol more realizable in experiments.
© 2008 Optical Society of America
OCIS Codes
(000.6800) General : Theoretical physics
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Quantum Optics
History
Original Manuscript: May 30, 2008
Revised Manuscript: September 7, 2008
Manuscript Accepted: October 27, 2008
Published: December 19, 2008
Citation
Yan Xia, Jie Song, He-Shan Song, and Shou Zhang, "Controlled generation of four-photon polarization-entangled decoherence-free states with conventional photon detectors," J. Opt. Soc. Am. B 26, 129-132 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-1-129
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