J4 ›› 2010, Vol. 27 ›› Issue (1): 63-68.

• 量子光学 • 上一篇    下一篇

含介质的边界振动的微腔中薛定谔猫态的产生

曲照军 柳盛典 杨传路 马晓光   

  1. 鲁东大学物理与电子工程学院,山东 烟台 264000
  • 出版日期:2010-01-28 发布日期:2009-12-30
  • 通讯作者: 曲照军(1958—),男,山东烟台人,鲁东大学物理与电子工程学院教授,硕士,主要从事量子光学研究. E-mail:qzj58314@yahoo.com.cn

Preparation of Schrödinger cat states in a cavity with medium and a moving mirror

QU Zhao-Jun, LIU Sheng-Dian, YANG Chuan-Lu, MA Xiao-Guang   

  1. College of Physics and Electronic Engineering, Ludong University, Yantai 264000, China
  • Published:2010-01-28 Online:2009-12-30

摘要:

采用全量子理论,考虑了边界振动的含克尔介质的微腔(振动边界视为频率为 的量子谐振子)与单模辐射场构成的系统,给出了系统的时间演化算符及其变换,得到了系统的态函数随时间的演化关系.讨论了当振动边界回到初态时的腔场态,得到了许多与已有文献不同的薛定谔猫态,这对于研究猫态的性质和应用是十分有意义的.

关键词: 量子光学, 薛定谔猫态, 边界振动的微腔, 克尔介质

Abstract:

For a system composed of a cavity with Kerr medium and a movable mirror (treated as a quantum harmonic oscillator with frequency ) and a single mode field in the cavity, the time evolution operator and its transformation of the system are given; the time evolution of the system state is obtained by means of full quantum theory. The state of the cavity field at the time of the mirror back to its original state is discussed, a variety of multicomponent Schrödinger cat states which are different from those in the published literature is obtained, which is significant for the study of the nature and applications of the Schrödinger cat states.

Key words: quantum optics, Schrödinger-cat state, cavity with a moving mirror, Kerr medium