J4 ›› 2014, Vol. 31 ›› Issue (3): 273-278.

• 量子光学 • 上一篇    下一篇

原子介质诱导的纠缠

张彩云,李虎   

  1. 安徽理工大学理学院,安徽 淮南 232001
  • 出版日期:2014-05-28 发布日期:2014-05-27
  • 通讯作者: 张彩云(1980-),女,理学硕士,讲师,主要研究方向为量子信息。 E-mail:zcylh9@163.com
  • 基金资助:
    natural science research project of High Education of Anhui Province (KJ2012Z080), Young Teachers Fund of Anhui University of Science and Technology under Grant(2012QNZ13)

Entanglement between a movable mirror and a cavity field with an atomic medium

ZHANG Caiyun, LI Hu   

  1. School of Science, Anhui University of Science and Technology, Huainan 232001, China
  • Published:2014-05-28 Online:2014-05-27

摘要: 提出了一个利用原子介质在光机械系统中产生纠缠的方案。研究结果表明,当腔场和原子介质间的耦合系数取合适值时,腔场和动镜,镜子与原子,以及腔场和原子之间都是纠缠的。此外,文章考虑了腔场耗散效应,并给出用“logarithmic negativity”去度量系统纠缠的数值解。

关键词: 量子光学, 光机械系统, 原子介质, 哈密顿, 纠缠

Abstract: A scheme to generate entanglement in a cavity optomechanical system filled with atomic medium is proposed. If the coupling between the cavity field and the atom medium is suitable, then the results show entanglement between the cavity and movable mirror, between the mirror and the atom, as well as between the cavity mode and the atom. Furthermore, the paper give number results by employing logarithmic negativity to quantity the entanglement including the cavity losses.

Key words: quantum optics, optomechanical system, atomic medium, Hamiltonian, entanglement

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