J4 ›› 2014, Vol. 31 ›› Issue (3): 324-328.

• 量子光学 • 上一篇    下一篇

利用Mach-Zehnder干涉仪制备自旋压缩态

夏启国,刘礼书,李嵩松   

  1. 南昌师范学院,江西 南昌 330032
  • 出版日期:2014-05-28 发布日期:2014-05-27
  • 通讯作者: 夏启国(1963—)江西九江人,工程师,主要从事电子信息和量子信息研究。 E-mail:xqgnnu@sina.com
  • 作者简介:

Generating spin squeezed state with Mach-Zehnder interferometer

Xia Qiguo,Liu Lishu,Li Songsong   

  1. Nanchang Normal University, Nanchang 330032, China
  • Published:2014-05-28 Online:2014-05-27

摘要: 提出了一种利用Mach-Zehnder干涉仪制备自旋压缩态的方案,研究了两条干涉路径之间的相位差对自旋压缩参数的影响。结果表明,自旋压缩出现在垂直于平均自旋和 轴的方向;通过调节两条干涉路径之间的相位差和减少两条干涉路径之间的粒子数差可以有效制备粒子的自旋压缩态。

关键词: 量子光学, 自旋压缩态, Mach-Zehnder干涉仪, 相位差

Abstract: A scheme for generating spin squeezed state with Mach-Zehnder interferometer was presented and the influence of the phase difference between two interfere paths on spin squeezing parameter was also investigated. It’s shown that spin squeezing occurs at the direction normal to mean spin direction and axis and the spin squeezed state can be effectively generated by adjusting the phase difference between two interfere paths and decreasing the population difference between two interfere paths.

Key words: quantum optics, spin squeezed state, Mach-Zehnder interferometer, phase difference

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