论文标题
纠缠收获：国家依赖和协方差
Entanglement harvesting: state dependence and covariance
论文作者
论文摘要
我们分析了纠缠收集的粒子探测器的任意初始状态和该领域的任意准确状态。尽管已知已知在空间涂片的粒子探测器中破坏了任意初始状态的协方差，但我们表明，从标量场的准探测器中收获的一对检测器收获的纠缠是在扰动理论中最高到二阶的协变量。
We analyze entanglement harvesting for arbitrary initial states of particle detectors and arbitrary quasifree states of the field. Despite the fact that spatially smeared particle detectors are known to break covariance for arbitrary initial states, we show that the entanglement harvested by a pair of detectors from a quasifree state of a scalar field is a covariant quantity up to second order in perturbation theory.
