基于分离腔系统远程制备W态方案

J4 ›› 2013, Vol. 30 ›› Issue (2): 192-197.

基于分离腔系统远程制备W态方案

丁智勇¹,何娟²,吴韬²

阜阳师范学院物理与电子科学学院，安徽阜阳 236029

收稿日期:2012-11-09 修回日期:2013-03-13 出版日期:2013-03-28 发布日期:2013-03-14
通讯作者: 丁智勇（1980－）安徽无为人，硕士，讲师，主要研究领域为量子物理。 E-mail:dzy_8012@163.com
基金资助:
This work was supported by Anhui Province Education Department Natural Science Research Key Project (Grant No.KJ2011ZD07) and the Talent Foundation of Anhui Provincial Higher Education (2009SQRZ152)

Implementing W state of remote atoms trapped in separated cavities

School of Physics and Electronic Science, Fuyang Normal College, Fuyang 236029, China

Received:2012-11-09 Revised:2013-03-13 Published:2013-03-28 Online:2013-03-14

摘要/Abstract

摘要： 提出了一个在分别由两光纤连接的三个分离腔中远程制备三原子W态的方案。制备过程中，由于原子系统、腔模和光纤模均处于非激发态，因此该方案能有效地抑制原子的自发辐射、腔衰减以及光纤泄露。相比与其他方案，我们方案的优点是所用的绝热演化方法对实验参数的变化不敏感。另外，该方案可以简单推广到制备n个原子的W态。

关键词: W态, 远程原子, 分离腔

Abstract: A scheme was proposed for implementing the entangled W state of three atoms trapped in distant cavities connected by single-mode fibers. The scheme is robust to atomic spontaneous decay, cavity decay and photon leaking out of the fiber due to that the atomic system, all the modes of cavity fields and fibers are only virtually excited. Compared to the previous schemes, the significant advantage is that the adiabatic passage is applied in our scheme. It does not need precise control of the Rabi frequency, pulse duration and is insensitive to moderate fluctuations of experimental parameters. In principle, the n-atom W state can be prepared by using such a method.

Key words: W state, remote atoms, separated cavities

中图分类号:

O431.2

丁智勇何娟吴韬. 基于分离腔系统远程制备W态方案[J]. J4, 2013, 30(2): 192-197.

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