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Chinese Physics, 2006, Vol. 15(12): 2947-2952    DOI: 10.1088/1009-1963/15/12/030
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Entangling two single-mode Gaussian states by use of a beam splitter

Li Hong-Rong(李宏荣), Li Fu-Li(李福利), and Yang Yang(杨杨)
Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China
Abstract  Considering two light beams which are in general single-mode Gaussian states and incident on input ports of an ideal beam splitter, respectively, this paper investigates how separability and entanglement of the output lights depend on degrees of nonclassicality and purities of the input states. The minimum and maximum amounts of attainable entanglement in the output state are found.
Keywords:  Gaussian states      entanglement      purity      nonclassicality  
Received:  18 January 2006      Revised:  10 February 2006      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  42.79.Fm (Reflectors, beam splitters, and deflectors)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10574103).

Cite this article: 

Li Hong-Rong(李宏荣), Li Fu-Li(李福利), and Yang Yang(杨杨) Entangling two single-mode Gaussian states by use of a beam splitter 2006 Chinese Physics 15 2947

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