J4 ›› 2013, Vol. 30 ›› Issue (4): 461-465.

• 量子光学 • 上一篇    下一篇

非线性囚禁离子模型中布居数反转演化

李剑   

  1. 亳州市移动公司, 安徽 亳州 236800
  • 收稿日期:2012-09-21 修回日期:2012-10-29 出版日期:2013-07-28 发布日期:2013-07-06
  • 通讯作者: 李剑(1977-)安徽亳州人, 工程师, 主要从事ICT及量子通信方向的研究。 E-mail:leejbz@163.com

Evolution of ion population inversion in nonlinear trapped ion model

LI Jian   

  1. The mobile company of Bozhou, Bozhou 236800, China
  • Received:2012-09-21 Revised:2012-10-29 Published:2013-07-28 Online:2013-07-06

摘要: 运用全量子理论的方法, 研究了在驻波激光场中单个囚禁离子布居数反转的动力学特性, 分别讨论非线性参数η和驻波场的相位 对离子布居数反转的崩塌-复原现象的影响. 结果表明, 随着η的增大, 离子的布居数反转崩塌-复原的周期变短, 振荡频率变大. 但当η超过某一临界值时, 离子的布居数反转崩塌-复原的轮廓变得不明显. 另外, 驻波激光场的相位也对囚禁离子布居数反转的动力学特性有明显的影响, 随着 的增大, 离子的布居数反转崩塌-复原的周期变大, 振荡频率变大.

关键词: 量子光学, 布居数反转, 全量子理论, 非线性相干态

Abstract: The dynamical properties of the population inversion of a trapped ion in standing wave field are studied. The influences of the nonlinear parametersη and the phase of the standing wave field on the collapses and revivals of the ionic inversion are discussed. The results show that the nonlinear parameter η has a great influence on the ion population inversion, namely, when the parameter η increases, the period of the ion population inversion becomes short and the oscillation frequency becomes larger. it is not obvious for the contour of the collapses and revivals of the ion population inversion when η reaches a critical value. In addition, the phase of the standing wave field also shows a significant influence on the ion population inversion.

Key words: quantum optics, population inversion, quantum theory, nonlinear coherent state

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