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Chinese Physics, 2004, Vol. 13(9): 1477-1486    DOI: 10.1088/1009-1963/13/9/021
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Entanglement and photon statistics of output fields from beam splitter for binomial state inputs

Zhou Qing-Ping (周清平)abc, Fang Mao-Fa (方卯发)ab 
a Department of Physics, Hunan Normal University, Changsha 410081, Chinab Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; c Department of Mathematics and Computer Science, Jishou University, Zhangjiajie 427000, China
Abstract  The entanglement properties are investigated based on linear entropy, and nonclassicalities are examined of output fields from a beam splitter for pure binomial state inputs. It is shown that the properties of the entanglement and the photon statistics of output fields are not only strongly dependent on the parameters of input binomial states but also quite involved with the nature of the beam splitter. The best entanglement can be obtained when the parameters of both input states and the beam splitter are chosen appropriately. Finally, we analyse briefly the distinguishability between the joint input state and the joint output state.
Keywords:  entanglement      photon statistics      distinguishability      beam splitter      binomial states      linear entropy      Q-parameter  
Received:  05 February 2004      Revised:  08 May 2004      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  42.50.Ar  
  42.79.Fm (Reflectors, beam splitters, and deflectors)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10374025) and the Scientific Research Fund of Hunan Provincial Education Department, China (Grant No 01c260).

Cite this article: 

Zhou Qing-Ping (周清平), Fang Mao-Fa (方卯发) Entanglement and photon statistics of output fields from beam splitter for binomial state inputs 2004 Chinese Physics 13 1477

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