J4 ›› 2009, Vol. 26 ›› Issue (5): 565-569.

• 量子光学 • 上一篇    下一篇

利用非最大纠缠态实现未知原子态的受控传递

熊狂炜 艾剑锋   

  1. 华东交通大学应用物理系 江西 南昌 330013
  • 出版日期:2009-09-28 发布日期:2009-08-27
  • 通讯作者: 熊狂炜(1977-) 男,江西南昌人,现为华东交通大学讲师,主要从事量子光学方面的研究。 E-mail:49548967@ecjtu.jx.cn
  • 基金资助:

    江西省自然科学基金资助项目(2007GZW0819);华东交通大学校立科研基金资助项目(06ZKJC07)

Controlled teleportation of unknown atomic states using non-maximally entangled states

XIONG Kuang, AI Jian-Feng   

  1. Department of Physics, East China Jiaotong University, Nan chang 330013
  • Published:2009-09-28 Online:2009-08-27

摘要:

提出一个利用三粒子非最大纠缠态传送未知原子态的腔QED方案。这个方案的主要优点是隐形传态和纯化过程能够同时进行,而且与腔衰减和热场无关,不用预先将非最大纠缠态量子通道纯化为最大纠缠态。另外,联合BELL态测量可以转化为单原子测量。

关键词: 量子光学, 受控传递, 腔QED, 强经典驱动场, 失谐相互作用

Abstract:

A physical scheme for teleporting unknown atomic entangled states via three-atom non-maximally entangled states is proposed in cavity QED. The distinct advantage of the scheme is that, not only the teleportation and distillation procedure can be realized simultaneously, but also the scheme is insensitive to the cavity decay and thermal field with the assistance of a strong classical driving field. it is also unnecessary to concentrate non-maximally entanglement state quantum channel in advance. In addition, the joint Bell-state measurement can be distinguished via detecting the atomic state.

Key words: quantum optics, controlled teleportation, Cavity QED technique, a strong classical driving field, detuned interaction