非惯性系下的多粒子纠缠态

J4 ›› 2017, Vol. 34 ›› Issue (1): 40-45.

非惯性系下的多粒子纠缠态

李军，马雷

华东师范大学物理系，上海 200241

收稿日期:2016-01-11 修回日期:2016-03-13 出版日期:2017-01-28 发布日期:2017-01-28
通讯作者: 马雷（1965-），山东人，副教授，主要研究方向为量子信息与量子通讯。 E-mail:lma@phy.ecnu.edu.cn
作者简介:李军（1990-），四川人，研究生，主要研究方向为量子信息与量子通讯。Email: 51130602096@ecnu.cn
基金资助:
Supported by National Natural Science Foundation of China(国家自然科学基金, 11174081）

Multipartite entanglement in noninertial frames

LI Jun, MA Lei

Department of Physics, East China Normal University, Shanghai 200241, China

Received:2016-01-11 Revised:2016-03-13 Published:2017-01-28 Online:2017-01-28

摘要/Abstract

摘要： 研究了三粒子纠缠随观测者加速的变化情况，发现纠缠随着加速度的增加而减少，当观测者都加速时π-tangle减小最快。讨论了量子信息的分布，纠缠和互信息都会重新分布到物理上不可到达的区域；相对论效应下的保真度随观测者加速度的增加而减少，从一定程度上说明了纠缠和保真度是有关联的。

关键词: 非惯性系；三粒子纠缠态；互信息；保真度

Abstract: The tripartite entanglement changing with the observer’s acceleration is investigated. It is found that the entanglement decreases with increasing of acceleration. π-tangle decreases most quickly when three observers are all accelerating. The distribution of quantum information is discussed. It’s found that the entanglement and mutual-information can be redistributed, and they can reach the physical inaccessible region. The fidelity under the relativistic effect decreases with increasing of the observer’s acceleration, which indicates that the entanglement and fidelity are related to a certain extent.

Key words: non-inertial frames; tripartite entanglement; mutual-information; fidelity

李军，马雷. 非惯性系下的多粒子纠缠态[J]. J4, 2017, 34(1): 40-45.

LI Jun, MA Lei. Multipartite entanglement in noninertial frames[J]. J4, 2017, 34(1): 40-45.

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