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Chinese Physics, 2007, Vol. 16(4): 1027-1030    DOI: 10.1088/1009-1963/16/4/027
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Entanglement swapping between atom and cavity and generation of entangled state of cavity fields

Chen Ai-Xi(陈爱喜) and Deng Li(邓黎)
Department of Physics, East China Jiaotong University, Nanchang 330013, China
Abstract  This paper proposes a scheme where entanglement swapping between atom and cavity can be realized. $\Lambda$-type three-level atoms interacting resonantly with cavity field are considered. By detecting atom and cavity field, it realizes entanglement swapping between atom and cavity. It uses the technique of entanglement swapping to generate an entangled state of two cavity fields by measuring on atoms. It discusses the experimental feasibility of the proposed scheme and application of entangled state of cavity fields.
Keywords:  entanglement swapping      cavity QED      entangled state  
Received:  20 June 2006      Revised:  02 August 2006      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  42.50.Pq (Cavity quantum electrodynamics; micromasers)  
  03.67.-a (Quantum information)  
  03.65.Yz (Decoherence; open systems; quantum statistical methods)  
Fund: Project supported by the Natural Science Foundation of Jiangxi, China (Grant No~0612006) and ECJTU (Grant No~06ZKJC01).

Cite this article: 

Chen Ai-Xi(陈爱喜) and Deng Li(邓黎) Entanglement swapping between atom and cavity and generation of entangled state of cavity fields 2007 Chinese Physics 16 1027

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