%0 Journal Article
%T Implementation of nonlocal quantum swap operation on two entangled pairs
%A Zheng Yi-Zhuang
%A Gu Yong-Jian
%A Chen Li-Bing
%A Guo Guang-Can
%A <br>郑亦庄
%A 顾永建
%A 陈立冰
%A 郭光灿
%J 中国物理 B
%D 2002
%I 
%X We propose a scheme for the implementation of nonlocal quantum swap operation on two spatially separated entangled pairs and we show that the operation can swap two qubits of these entangled pairs. We discuss the resources of the entangled qubits and classical communication bits required for the optimal implementation of the nonlocal quantum swap operation. We also put forward a scheme for probabilistic implementation of nonlocal swap operation via a nonmaximally entangled quantum channel. The probability of a successful nonlocal swap operation is obtained by introducing a collective unitary transformation.
%K quantum nonlocality
%K swap operation
%K nonmaximally entangled<br>量子力学
%K 非定域量子交换作用
%K 交缠粒子对
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=225FBD3EF82744125B23557D6F75D96F&yid=C3ACC247184A22C1&vid=708DD6B15D2464E8&iid=B31275AF3241DB2D&sid=2A2AA8B7E19F0DF7&eid=640CCB6E396307A8&journal_id=1009-1963&journal_name=中国物理&referenced_num=2&reference_num=0