Disentanglement of two harmonic oscillators in relativistic motion

被引：59

作者：

Lin, Shih-Yuin ^{[1
]}

Chou, Chung-Hsien ^{[2
,3
]}

Hu, B. L. ^{[4
,5
,6
]}

机构：

[1] Natl Ctr Theoret Sci, Div Phys, Hsinchu 30013, Taiwan

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[3] Natl Ctr Theoret Sci S, Div Phys, Tainan 701, Taiwan

[4] Univ Maryland, Joint Quantum Inst, College Pk, MD 20742 USA

[5] Univ Maryland, Dept Phys, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA

[6] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.78.125025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the dynamics of quantum entanglement between two Unruh-DeWitt detectors, one stationary (Alice), and another uniformly accelerating (Rob), with no direct interaction but coupled to a common quantum field in (3+1)D Minkowski space. We find that for all cases studied the initial entanglement between the detectors disappears in a finite time ("sudden death"). After the moment of total disentanglement the correlations between the two detectors remain nonzero until late times. The relation between the disentanglement time and Rob's proper acceleration is observer dependent. The larger the acceleration is, the longer the disentanglement time in Alice's coordinate, but the shorter in Rob's coordinate.

引用

页数：13

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