中国物理B ›› 2006, Vol. 15 ›› Issue (12): 2947-2952.doi: 10.1088/1009-1963/15/12/030

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

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

李宏荣, 李福利, 杨 杨   

  1. Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China
  • 收稿日期:2006-01-18 修回日期:2006-02-10 出版日期:2006-12-20 发布日期:2006-12-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574103).

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)   

  1. Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:2006-01-18 Revised:2006-02-10 Online:2006-12-20 Published:2006-12-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574103).

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摘要： 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.

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.

Key words: Gaussian states, entanglement, purity, nonclassicality

中图分类号:  (Quantum state engineering and measurements)

  • 42.50.Dv
42.79.Fm (Reflectors, beam splitters, and deflectors)