Suppressing entanglement sudden death by initial system-environment correlation
Suppressing entanglement sudden death by initial system-environment correlation
复制标题
通过初始系统-环境相关性抑制纠缠猝死
DOI:
10.1088/1674-1137/36/7/004
复制
发表时间:
2012
影响因子:
3.6
通讯作者:
Ren Zhong-Zhou
中科院分区:
文献类型:
--
作者:
Yue Ping;Zheng Qiang;Ren Zhong-Zhou
This paper studies the entanglement dynamics of the system S composed of two non-interactional qubits A and B. The third qubit C is its environment, E, which only interacts with the S qubit B by the Dzyaloshinskii-Moriya spin-orbit coupling. Considering the following states as the whole (S+E): the initially S-E correlated state and the separable one, the entanglement of S has no sudden death for the former case. This result sheds some light on the control of quantum entanglement, which will be helpful for quantum information processing.