中国物理B ›› 2007, Vol. 16 ›› Issue (8): 2237-2243.doi: 10.1088/1009-1963/16/8/014

• GENERAL • 上一篇    下一篇

The separability of two-mode Gaussian state under amplification and symmetric damping

陈小余1, 蒋丽珍1, 邬良能2   

  1. (1)College of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; (2)College of Science, China Institute of Metrology, Hangzhou 310034, China
  • 收稿日期:2006-10-11 修回日期:2007-03-06 出版日期:2007-08-20 发布日期:2007-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10575092), the Zhejiang Province Natural Science Foundation (Grant No RC104265) and General Administration of Quality Supervision,Inspection and Quarantine of China (Grant No

The separability of two-mode Gaussian state under amplification and symmetric damping

Chen Xiao-Yu (陈小余)a), Jiang Li-Zhen (蒋丽珍)a), and Wu Liang-Neng (邬良能)b)   

  1. a College of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; b College of Science, China Institute of Metrology, Hangzhou 310034, China
  • Received:2006-10-11 Revised:2007-03-06 Online:2007-08-20 Published:2007-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10575092), the Zhejiang Province Natural Science Foundation (Grant No RC104265) and General Administration of Quality Supervision,Inspection and Quarantine of China (Grant No

摘要: The performances of a two-mode Gaussian state under parametric amplification, symmetric amplitude damping and thermal noise are studied. The time-dependent complex correlation matrix of the state in evolution is given. The separability of the final two-mode Gaussian state is examined under symmetric amplification and asymmetric amplification separately.

Abstract: The performances of a two-mode Gaussian state under parametric amplification, symmetric amplitude damping and thermal noise are studied. The time-dependent complex correlation matrix of the state in evolution is given. The separability of the final two-mode Gaussian state is examined under symmetric amplification and asymmetric amplification separately.

Key words: parametric amplifier, amplitude damping, characteristic function, separability

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Mn (Entanglement measures, witnesses, and other characterizations) 05.40.Ca (Noise)