中国物理B ›› 2002, Vol. 11 ›› Issue (1): 30-34.doi: 10.1088/1009-1963/11/1/307

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Sum and two-atom dipole squeezing in a system of a two-mode vacuum field interacting with two coupled atoms

侯邦品1, 刘杰2, 胡萍2   

  1. (1)Department of Physics, Sichuan Normal University, Chengdu 610068, China; (2)Institute of Solid State Physics, Sichuan Normal University, Chengdu 610068, China
  • 收稿日期:2001-02-05 修回日期:2001-07-03 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the Education Foundation of Sichuan Province, China (Grant No. 200025).

Sum and two-atom dipole squeezing in a system of a two-mode vacuum field interacting with two coupled atoms

Hou Bang-Pin (侯邦品)a, Liu Jie (刘杰)b, Hu Ping (胡萍)b   

  1. a Department of Physics, Sichuan Normal University, Chengdu 610068, China; b Institute of Solid State Physics, Sichuan Normal University, Chengdu 610068, China
  • Received:2001-02-05 Revised:2001-07-03 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the Education Foundation of Sichuan Province, China (Grant No. 200025).

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摘要： We discuss the effects of the initial atomic coherent factors (including the phase and the distribution parameter) and the dipole-dipole interaction on the sum and two-atom dipole squeezing in the system. The results show that the maximum squeezing in both cases is determined by the phase and the distribution parameter, and the duration of squeezing becomes longer by strengthening the dipole-dipole interaction. In addition, the comparison of the two types of squeezing shows that one type of squeezing is obtained at the expense of increased fluctuations in the other squeezing function.

Abstract: We discuss the effects of the initial atomic coherent factors (including the phase and the distribution parameter) and the dipole-dipole interaction on the sum and two-atom dipole squeezing in the system. The results show that the maximum squeezing in both cases is determined by the phase and the distribution parameter, and the duration of squeezing becomes longer by strengthening the dipole-dipole interaction. In addition, the comparison of the two types of squeezing shows that one type of squeezing is obtained at the expense of increased fluctuations in the other squeezing function.

Key words: two-mode vacuum field, sum squeezing, two-atom dipole squeezing, dipole-dipole interaction

中图分类号:  (Photoionization and excitation)

  • 32.80.-t
42.50.Dv (Quantum state engineering and measurements)