中国物理B ›› 2003, Vol. 12 ›› Issue (4): 408-414.doi: 10.1088/1009-1963/12/4/312

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Non-conservation of energy arising from atomic dipole interactions and its effects on light field and coupled atoms

董传华   

  1. Department of Physics, Shanghai University, Shanghai 200436, China
  • 收稿日期:2002-08-21 修回日期:2002-12-23 出版日期:2005-03-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the Shanghai Leading Academic Discipline Program.

Non-conservation of energy arising from atomic dipole interactions and its effects on light field and coupled atoms

Dong Chuan-Hua (董传华)   

  1. Department of Physics, Shanghai University, Shanghai 200436, China
  • Received:2002-08-21 Revised:2002-12-23 Online:2005-03-16 Published:2005-03-16
  • Supported by:
    Project supported by the Shanghai Leading Academic Discipline Program.

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摘要： The interactions between coupled atoms and a single mode of a quantized electromagnetic field, which involve the terms originating from the dipole interactions, are discussed. In the usual Jaynes－Cummings model for coupled atoms, the terms of non-conservation of energy originating from dipole interactions are neglected, however, we take them into consideration in this paper. The effects of these terms on the evolutions of quantum statistic properties and squeezing of the field, the squeezing of atomic dipole moments and atomic population inversion are investigated. It has been shown that the coupling between atoms modulates these evolutions of fields and atoms. The terms of non-conservation of energy affect these evolutions of fields and atoms slightly. They also have effects on the squeezing of the field, the squeezing of atomic dipole and atomic population inversions. The initial states of atoms also affect these properties.

Abstract: The interactions between coupled atoms and a single mode of a quantized electromagnetic field, which involve the terms originating from the dipole interactions, are discussed. In the usual Jaynes－Cummings model for coupled atoms, the terms of non-conservation of energy originating from dipole interactions are neglected, however, we take them into consideration in this paper. The effects of these terms on the evolutions of quantum statistic properties and squeezing of the field, the squeezing of atomic dipole moments and atomic population inversion are investigated. It has been shown that the coupling between atoms modulates these evolutions of fields and atoms. The terms of non-conservation of energy affect these evolutions of fields and atoms slightly. They also have effects on the squeezing of the field, the squeezing of atomic dipole and atomic population inversions. The initial states of atoms also affect these properties.

Key words: Jaynes－Cummings model, squeezing, collapse and revival

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

  • 42.50.Dv
05.30.-d (Quantum statistical mechanics)