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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 8 — Aug. 1, 2013
  • pp: 2142–2147

Generation of N-atom W-class states in spatially separated cavities

Mei Lu, Yan Xia, Jie Song, and Nguyen Ba An  »View Author Affiliations


JOSA B, Vol. 30, Issue 8, pp. 2142-2147 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002142


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Abstract

We propose a feasible and efficient scheme to generate N-atom W-class states in spatially separated cavities without using any classical driving pulses. We adopt the model in which the couplings between different atoms are mediated only by virtual excitations of the cavity and fiber fields, so the scheme is insensitive to the cavity decay and fiber photon leakage. We carry out both theoretical investigation in a decoherence-free subspace and numerical calculation accounting for decoherence due to the atomic spontaneous emission as well as the decay of cavity and fiber modes. The theoretical and numerical results agree in the large atom-cavity detuning regime. Our scheme proves to be useful in scalable distributed quantum networks.

© 2013 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5580) Quantum optics : Quantum electrodynamics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: April 23, 2013
Revised Manuscript: June 11, 2013
Manuscript Accepted: June 16, 2013
Published: July 17, 2013

Citation
Mei Lu, Yan Xia, Jie Song, and Nguyen Ba An, "Generation of N-atom W-class states in spatially separated cavities," J. Opt. Soc. Am. B 30, 2142-2147 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-8-2142

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