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.
出处
《江西师范大学学报(自然科学版)》
CAS
北大核心
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
关键词
量子纠缠态
纠缠GHZ态
纠缠W态
quantum entanglement
entangled GHZ state
entangled W state
作者简介
饶志明(1978-),男,江西东乡人,讲师,博士生,主要从事量子光学、激光物理等方面的研究