在原子-腔-光纤系统中制备N个腔模的W态

J4 ›› 2012, Vol. 29 ›› Issue (2): 196-203.

在原子-腔-光纤系统中制备N个腔模的W态

熊伟叶柳

安徽大学物理与材料科学学院，安徽合肥 230039

收稿日期:2010-12-29 修回日期:2011-02-24 出版日期:2012-03-28 发布日期:2012-02-28
通讯作者: 叶柳（1964-），女，安徽合肥人，博士，教授，主要从事量子计算与量子信息方面的研究。 E-mail:yeliu@ahu.edu.cn
作者简介:熊伟, 研究生，研究方向为量子信息。Email：xiongwei126@126.com
基金资助:
National Natural Science Foundation of China (10674001), Doctoral Foundation of the Ministry of Education of China (20103401110003) , Personal Development Foundation of Anhui Province (2008Z018)

Generation of N-cavity field W state in atom-cavity-fiber system

XIONG Wei, YE Liu

School of Physics and Material Science, Anhui University, Hefei 230039, China

Received:2010-12-29 Revised:2011-02-24 Published:2012-03-28 Online:2012-02-28

摘要/Abstract

摘要：

提出一个在原子-腔-光纤系统中制备最大纠缠的W态方案，要求原子与腔之间的耦合常数要比拉比频率小的多。通过暗态绝热演化方法，使原子的自发辐射和光模损耗得到有效的抑制。因此我们一些参数的涨落对此方案的影响比较小。该方案操作比较简便，只要调节原子与腔场之间的耦合系数就能得到W态。此系统构成量子网络的一部分。

关键词: W 态, 暗态, 原子-腔-光纤系统

Abstract:

A robust scheme was proposed for generating maximally W entangled states of cavity field in atom-cavity-fiber system. The scheme requires that the coupling coefficient between the cavity and the atom is much smaller than the Rabi frequency. The atomic spontaneous emission and the fiber modes decay are suppressed efficiently via employing adiabatic evolution along dark states. So it is insensitive to the small fluctuation of some parameters. It is also convenient only by adjusting atom-field couplings appropriately to generate W state deterministically. This system can be considered as an ingredient of the quantum network.

Key words: quantum optics, W state, dark state, atom-cavity-fiber system

中图分类号:

O431.2

熊伟叶柳. 在原子-腔-光纤系统中制备N个腔模的W态[J]. J4, 2012, 29(2): 196-203.

XIONG Wei, YE Liu . Generation of N-cavity field W state in atom-cavity-fiber system[J]. J4, 2012, 29(2): 196-203.

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