%0 Journal Article
%T Scheme for Concentration of Unknown Greeberger--Horne--Zeilinger Entangled States via Cavity Decay<br>Scheme for Concentration of Unknown Greeberger-Horne-Zeilinger Entangled States via Cavity Decay
%A ZHANG Xiao-Wei
%A LIU Xiang
%A TANG Xiao-Fang
%A TANG You-Liang
%A <br>张小伟
%A 刘翔
%A 唐筱芳
%A 唐有良
%J 中国物理快报
%D 2007
%I 
%X We present a scheme for entanglement concentration of an unknown atomic non-maximally entangled GHZ state via cavity decay. In the scheme, the atom trapped in a cavity is manipulated by laser field, so the maximally entangled GHZ state can be obtained by performing certain operation, which can be realized by illuminating the atom in a cavity. Our method is robust against spontaneous atomic decay.
%K 03
%K 67
%K Hk
%K 42
%K 50
%K Dv<br>浓度
%K GHZ
%K 三量子位纠缠系统
%K 测量方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A6F1F92187EC7BB8B447B9491B5DCA7A&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=38B194292C032A66&sid=3B2BF7AC5674E8E2&eid=10A39635766FF5D0&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0