中国物理B ›› 2013, Vol. 22 ›› Issue (9): 90303-090303.doi: 10.1088/1674-1056/22/9/090303

• GENERAL • 上一篇    下一篇

Detaching two single-mode squeezing operators from the two-mode squeezing operator

范洪义, 笪诚   

  1. Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2013-02-02 修回日期:2013-03-19 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the Fundamental Research Funds for the Central Universities of China (Grant No. WK2060140013).

Detaching two single-mode squeezing operators from the two-mode squeezing operator

Fan Hong-Yi (范洪义), Da Cheng (笪诚)   

  1. Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • Received:2013-02-02 Revised:2013-03-19 Online:2013-07-26 Published:2013-07-26
  • Contact: Da Cheng E-mail:dacheng@ustc.edu
  • Supported by:
    Project supported by the Fundamental Research Funds for the Central Universities of China (Grant No. WK2060140013).

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摘要： It has been common knowledge that the single-mode squeezing operator and the two-mode squeezing operator are independent of each other. However, in this work we find that after using the technique of integration within Q-ordering and P-ordering, we can detach two single-mode squeezing operators from the two-mode squeezing operator. In other words, we show that the two-mode squeezing operator can be split into a P-ordered two-mode squeezing operator (with a new squeezing parameter) and two single-mode squeezing operators (with another squeezing parameter). This tells us that the two-mode squeezing mechanism also involves some single-mode squeezing.

关键词: Q-ordering and P-ordering, single-mode and two-mode squeezing operators, detaching

Abstract: It has been common knowledge that the single-mode squeezing operator and the two-mode squeezing operator are independent of each other. However, in this work we find that after using the technique of integration within Q-ordering and P-ordering, we can detach two single-mode squeezing operators from the two-mode squeezing operator. In other words, we show that the two-mode squeezing operator can be split into a P-ordered two-mode squeezing operator (with a new squeezing parameter) and two single-mode squeezing operators (with another squeezing parameter). This tells us that the two-mode squeezing mechanism also involves some single-mode squeezing.

Key words: Q-ordering and P-ordering, single-mode and two-mode squeezing operators, detaching

中图分类号:  (Quantum mechanics)

  • 03.65.-w
42.50.-p (Quantum optics)