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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. 10 — Oct. 1, 2012
  • pp: 2827–2833

Atomic quantum information processing in low-Q cavity in the intermediate coupling region

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


JOSA B, Vol. 29, Issue 10, pp. 2827-2833 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002827


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Abstract

We present an atomic-state entangler with single atoms trapped in separated low-Q cavities, a coherent optical pulse as a quantum channel, a photon detector that only distinguishes the vacuum and nonvacuum states, and basic optical elements based on the input–output process in the intermediate coupling region with a higher probability and fidelity. The atomic-state entangler is meaningful because it does not need a strong coupling cavity and a single-photon source and could be feasible for large-scale quantum computation and quantum communication in the future. Based on this entangler, quantum information nonlocal transfer without classical communication, the quantum controlled-NOT gate, the four-particle |χ state, the N-particle Greenberger-Horne-Zeilinger (GHZ) state, and cluster-state generation can be realized completely, which is useful in large-scale and nonlocal quantum information processing.

© 2012 Optical Society of America

OCIS Codes
(270.5580) Quantum optics : Quantum electrodynamics
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: July 3, 2012
Revised Manuscript: August 13, 2012
Manuscript Accepted: August 21, 2012
Published: September 19, 2012

Citation
Shi-Lei Su, Qi Guo, Long Zhu, Hong-Fu Wang, and Shou Zhang, "Atomic quantum information processing in low-Q cavity in the intermediate coupling region," J. Opt. Soc. Am. B 29, 2827-2833 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2827


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