Quantum entanglement in the background of cosmic string spacetime
Quantum entanglement in the background of cosmic string spacetime
复制标题
宇宙弦时空背景下的量子纠缠
DOI:
10.1007/s11128-020-02796-1
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发表时间:
2020-08
影响因子:
2.5
通讯作者:
Zhimin He
中科院分区:
文献类型:
--
作者:
Zhiming Huang;Zhimin He
We examine the entanglement behaviors for two static atoms coupled to a massless scalar field in the cosmic string spacetime. The entanglement measure is calculated for different cases for two atoms initially prepared in the Werner state. It is found that entanglement behaviors depend on vacuum fluctuation, two-atom distance and nontrivial spacetime topology. When deficit angle parameter, the evolution model reduces to that of Minkowski spacetime. When two-atom distance is sufficiently small, entanglement can be preserved from the impact of vacuum fluctuation to some extent. Large deficit angle parameter can accelerate destruction of entanglement and shorten lifetime of entanglement. Entanglement presents slight oscillating behavior as atom–string distance varies. A large atom–string distance can retard the entanglement decay and extend entanglement lifetime as a whole. Our exploration may be useful to sense the cosmic string spacetime topology structure and property in principle.
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影响因子:
3.5
作者:
Cai, Huabing;Ren, Zhongzhou
通讯作者:
Ren, Zhongzhou
DOI:
10.1145/505482.505499
发表时间:
2001-07
期刊:
ACM SIGSOFT Softw. Eng. Notes
影响因子:
--
作者:
Jim Law
通讯作者:
Jim Law
DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Wan Cong;Erickson Tjoa;R. Mann
通讯作者:
Wan Cong;Erickson Tjoa;R. Mann
影响因子:
4.4
作者:
A. Saharian;A. Kotanjyan
通讯作者:
A. Saharian;A. Kotanjyan
DOI:
10.1103/physrevd.93.084028
发表时间:
2016-04
期刊:
Physical Review D - Particles, Fields, Gravitation and Cosmology
影响因子:
--
作者:
Wenting Zhou;Hongwei Yu
通讯作者:
Hongwei Yu