论文标题
时间的量子相关性
Quantum correlations in time
论文作者
论文摘要
我们研究了不同方法中时间的量子相关性。我们假设应与空间相关性以均衡方式对待时间相关性。我们将伪密度矩阵形式主义与其他几种方法进行比较：无限期的因果结构，一致的历史，广义量子游戏，超级阶段相关性（OTOC）和路径积分。我们在非相关量子理论中建立了这些时空方法之间的密切关系，从而产生了统一的图像。除了路径积分形式主义中的振幅加权相关性外，在给定的实验中，不同方法中的时间相关性是相同或相等的。
We investigate quantum correlations in time in different approaches. We assume that temporal correlations should be treated in an even-handed manner with spatial correlations. We compare the pseudo-density matrix formalism with several other approaches: indefinite causal structures, consistent histories, generalised quantum games, out-of-time-order correlations(OTOCs), and path integrals. We establish close relationships among these space-time approaches in non-relativistic quantum theory, resulting in a unified picture. With the exception of amplitude-weighted correlations in the path integral formalism, in a given experiment, temporal correlations in the different approaches are the same or operationally equivalent.
