在单模真空场中利用纠缠GHZ态制备纠缠W态  

Generation of Entangled W State via Entangled GHZ State in the Single Mode Cavity Field

作　　者：饶志明[1] 况庆强[2] 

机构地区：[1]江西中医学院计算机学院,江西南昌330004 [2]江西师范大学物理与通信电子学院,江西南昌330022

出　　处：《江西师范大学学报（自然科学版）》2010年第1期49-52,共4页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金(60807014);江西省自然科学基金(2008GQS0050);江西省教研(JXJG071023)资助项目

摘　　要：提出在单模真空场中利用纠缠GHZ态制备纠缠W态方案.3个原子(1,2,3)之间初始为纠缠GHZ态,原子1远离单模真空场,而原子2和原子3进入单模真空场与场相互作用.在原子间耦合量适当时,通过控制单模真空场与原子2和原子3的相互作用时间,对原子1的状态进行测量,制备出理想纠缠W态.Entangled W state can be applied to quantum information processing in the quantum entanglement, and presented a scheme generation of entangled W state via entangled GHZ state in the single mode cavity field. Three two-level atoms（ 1,2,3） initially in the W entanglement state, then two atoms 2 and 3 are injected into single mode cavity field to make interaction, while atom 1 is far from the cavity field. The result shows that entangled W state can be generated by manipulating the interactions between cavity field and two atoms in appropriate coupling coefficients when atom 1 is be detected.

关 键 词：量子纠缠态 纠缠GHZ态 纠缠W态 

分 类 号：O431[机械工程—光学工程]