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
期刊:
影响因子:
3.6
通讯作者:
Ren Zhong-Zhou
Ren Zhong-Zhou
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yue Ping;Zheng Qiang;Ren Zhong-Zhou

文献摘要

相似文献

本文研究了由两个非相互作用量子位 A 和 B 组成的系统 S 的纠缠动力学。第三个量子位 C 是其环境 E,它仅通过 Dzyaloshinskii-Moriya 自旋轨道耦合与 S 量子位 B 相互作用。考虑以下状态作为整体(S+E):最初的S-E相关状态和可分离状态,对于前一种情况,S的纠缠没有突然死亡。这一结果为量子纠缠的控制提供了一些线索,这将有助于量子信息处理。
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.