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Efficient creation of continuous-variable entanglement for two atomic ensembles in coupled cavities

Journal Article · · Physical Review. A
;  [1];  [2];  [3]
  1. Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)
  2. Department of Physics, Fuzhou University, Fuzhou 350002 (China)
  3. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)
We investigate the generation of continuous-variable (CV) entanglement of two separated atomic ensembles in coupled cavities. We find that under certain conditions, the entanglement between the two ensembles is gained periodically when the three-level {Lambda}-type atoms in each ensemble dispersively interact with one classical field and one cavity mode. Generation of the entangled state does not completely depend on the cavity photon number. In addition, the effect of decoherence can be suppressed effectively.
OSTI ID:
21546726
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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