量子电子学报
量子電子學報
양자전자학보
CHINESE JOURNAL OF QUANTUM ELECTRONICS
2006年
4期
489-493
,共5页
陈立冰%刘玉华%白宜红%路洪
陳立冰%劉玉華%白宜紅%路洪
진립빙%류옥화%백의홍%로홍
量子光学%非局域态交换%纠缠态%操纵
量子光學%非跼域態交換%糾纏態%操縱
양자광학%비국역태교환%규전태%조종
quantum optics%non-local SWAP operation%entanglement state%implementation
提出一种用三粒子纠缠态和Bell态作量子信道对处于异地的两纠缠粒子对实现非局域的态交换的理论方案.该方案的特点是,两地之间还存在一位第三者,她作为监控人参与量子非局域操纵过程.特别地,当量子信道为部分纠缠态时,此人可矫正被非理想量子信道致畸的量子态.
提齣一種用三粒子糾纏態和Bell態作量子信道對處于異地的兩糾纏粒子對實現非跼域的態交換的理論方案.該方案的特點是,兩地之間還存在一位第三者,她作為鑑控人參與量子非跼域操縱過程.特彆地,噹量子信道為部分糾纏態時,此人可矯正被非理想量子信道緻畸的量子態.
제출일충용삼입자규전태화Bell태작양자신도대처우이지적량규전입자대실현비국역적태교환적이론방안.해방안적특점시,량지지간환존재일위제삼자,저작위감공인삼여양자비국역조종과정.특별지,당양자신도위부분규전태시,차인가교정피비이상양자신도치기적양자태.
We propose a theoretical scheme for the implementation of a non-local quantum SWAP operation on two spatially separated entangled pairs by a three-qubit entangled state and a Bell state, and we show that the operation can swap two qubits of these entangled pairs. The feature of the scheme is that a third side is included, who may participate the process of quantum non-local implementation as a supervisor. Furthermore, when the quantum channel is partially entangled,the third one can rectify the state distorted by imperfect quantum channel.