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Chin. Phys. B, 2008, Vol. 17(6): 2143-2146    DOI: 10.1088/1674-1056/17/6/033
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Generation of entangled coherent states for two cavity modes via resonant interaction with a V-type three-level atom

Zheng Shi-Biao(郑仕标)
Department of Electronic Science and Applied Physics Fuzhou University, Fuzhou 350002, China
Abstract  This paper proposes a scheme for the generation of entangled coherent states for two cavity modes. In the scheme a V-type three-level atom is sent through a two-mode cavity filled with a coherent field. After the atom--cavity interaction and detection of the atomic state the cavity modes may evolve to a superposition of two-mode coherent states. As the scheme is based on resonant atom--cavity interaction, the required interaction time is short, which is important in view of the decoherence. Moreover, additional classical pulses are unnecessary before and after the atom--cavity interaction.
Keywords:  entangled coherent state      resonant interaction      V-type three-level atom  
Received:  05 August 2007      Revised:  17 October 2007      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  03.65.Ud (Entanglement and quantum nonlocality)  
  03.65.Yz (Decoherence; open systems; quantum statistical methods)  
  42.50.Ar  
  42.50.Pq (Cavity quantum electrodynamics; micromasers)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10674025) and the Funds from Fuzhou University.

Cite this article: 

Zheng Shi-Biao(郑仕标) Generation of entangled coherent states for two cavity modes via resonant interaction with a V-type three-level atom 2008 Chin. Phys. B 17 2143

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