非马尔科夫环境下两体及多体纠缠研究  

Study of Bipartite and Multipartite Entanglement Without Rotatingwave and Markovian Approximations

作　　者：汪明[1] 张建松[1] Wang Ming Zhang Jiansong(School of Science, East China Jiaotong University, Nanchang 330013, China)

机构地区：[1]华东交通大学理学院

出　　处：《华东交通大学学报》2017年第2期112-117,共6页Journal of East China Jiaotong University

基　　金：国家自然科学基金项目(11565013);江西省科学研究基金项目(20151BAB202020)

摘　　要：利用hierarchy方程研究了非旋波非马尔科夫近似下三量子比特系统在同一热库下两体及多体纠缠的演化。研究表明,可以通过改变系统与环境相互作用强度以及热库的非马尔科夫性质调整两体及多体纠缠,对实现非马尔科夫环境下基于多体系统的量子信息过程有较大帮助。Hierarchy equation was adopted to study the evolution of bipartite and multipartite entanglement of three qubits system without rotating-wave and Markovian approximations. The study shows that the entanglement of bipartite and multipartite can be controlled by the interaction of the system and the environment or the nonMarkovian property of bath, which is very useful to realize quantum information process under the non-Markovian environment based on the multipartite system.

关 键 词：非旋波近似 非马尔科夫近似 量子纠缠 量子比特 hierarchy方程 

分 类 号：O431.2[机械工程—光学工程]