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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. 29, Iss. 8 — Aug. 1, 2012
  • pp: 2156–2160

Nondestructive N-atom Greenberger–Horne–Zeilinger state analyzer via the cavity input–output process

Long Zhu, Hong-Fu Wang, Shi-Lei Su, Qi Guo, Li-Li Sun, and Shou Zhang  »View Author Affiliations


JOSA B, Vol. 29, Issue 8, pp. 2156-2160 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002156


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Abstract

We propose a deterministic scheme to realize N-atom Greenberger–Horne–Zeilinger (GHZ) state analyzer based on the cavity input–output process. In the scheme, we construct a two-qubit parity analyzer and a GHZ-state phase analyzer and show that all the N-atom GHZ states can be completely identified in a nondestructive way by combining these two kinds of analyzers. The fidelities of our analyzers are also calculated, which show that our scheme has a high performance in theory. The scheme opens promising perspectives for achieving efficient large-scale quantum communication and quantum information processing networks.

© 2012 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: January 17, 2012
Revised Manuscript: May 28, 2012
Manuscript Accepted: July 4, 2012
Published: July 27, 2012

Citation
Long Zhu, Hong-Fu Wang, Shi-Lei Su, Qi Guo, Li-Li Sun, and Shou Zhang, "Nondestructive N-atom Greenberger–Horne–Zeilinger state analyzer via the cavity input–output process," J. Opt. Soc. Am. B 29, 2156-2160 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-8-2156

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