Classical and Quantum Gravity ( IF 3.5 ) Pub Date : 2021-08-24 , DOI: 10.1088/1361-6382/ac1b09 Shu-Min Wu 1 , Hao-Sheng Zeng 2 , Hui-Min Cao 2
We study the quantum coherence and its distribution of N-partite GHZ and W states of bosonic fields in the noninertial frames with arbitrary number of acceleration observers. We find that the coherence of both GHZ and W state reduces with accelerations and freezes in the limit of infinite accelerations. The freezing value of coherence depends on the number of accelerated observers. The coherence of N-partite GHZ state is genuinely global and no coherence exists in any subsystems. For the N-partite W state, however, the coherence is essentially bipartite types, and the total coherence is equal to the sum of coherence of all the bipartite subsystems.
中文翻译:
非惯性系中 N 分玻色场的量子相干性和分布
我们研究了非惯性坐标系中玻色场N分 GHZ 和 W 态的量子相干性及其分布,任意数量的加速度观察者。我们发现 GHZ 和 W 状态的相干性随着加速度的增加而降低,并在无限加速度的极限内冻结。相干性的冻结值取决于加速观察者的数量。N- partite GHZ 状态的一致性是真正全局的,并且在任何子系统中都不存在一致性。然而,对于N- partite W 状态,相干性本质上是二分类型,总相干性等于所有二分子系统的相干性之和。