Nonlocal coherence harvesting from quantum vacuum

被引:1
|
作者
Wang, Rui-Di [1 ]
Wu, Shu-Min [1 ]
Huang, Xiao-Li [1 ]
机构
[1] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
基金
中国国家自然科学基金;
关键词
nonlocal coherence; quantum vacuum; monogamous relationship; BELL INEQUALITIES; FIELD THEORY; ENTANGLEMENT;
D O I
10.1088/1572-9494/ad4a38
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It is well known that nonlocal coherence reflects nonclassical correlations better than quantum entanglement. Here, we analyze nonlocal coherence harvesting from the quantum vacuum to particle detectors adiabatically interacting with a quantum scalar field in Minkowski spacetime. We find that the harvesting-achievable separation range of nonlocal coherence is larger than that of quantum entanglement. As the energy gap grows sufficiently large, the detectors harvest less quantum coherence, while the detectors could extract more quantum entanglement from the vacuum state. Compared with the linear configuration and the scalene configuration, we should choose the model of equilateral triangle configuration to harvest tripartite coherence from the vacuum. Finally, we find a monogamous relationship, which means that tripartite l1-norm of coherence is essentially bipartite types.
引用
收藏
页数:8
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