论文标题
不确定因果秩序提取工作的因果游戏
Causal games of work extraction with indefinite causal order
论文作者
论文摘要
不确定的因果秩序，其中事件的原因不一定是在过去的事件中，由过程矩阵框架预测。一个基本问题是这些不可分割的因果结构如何与热力学现象有关。在这里，我们通过考虑存在两个合作的麦克斯韦的恶魔来解决这个问题，这些恶魔试图利用全球相关性的存在和不确定的因果秩序来优化工作的提取。因此，我们证明，如果因果不平等现象违反了因果关系，就有可能将局部能量降低到零，并且可以根据一定的因果秩序提取更平均的工作。但是，对于非交互当事方，对于被认为可提取的工作的系统，可提取的工作不能大于确定的因果秩序。
An indefinite causal order, where the causes of events are not necessarily in past events, is predicted by the process matrix framework. A fundamental question is how these non-separable causal structures can be related to the thermodynamic phenomena. Here, we approach this problem by considering the existence of two cooperating local Maxwell's demons which try to exploit the presence of global correlations and indefinite causal order to optimize the extraction of work. Thus, we prove that it is possible to have a larger probability to lower the local energy to zero if causal inequalities are violated, and that can be extracted more average work with respect to a definite causal order. However, for non-interacting parties, for the system considered the work extractable cannot be larger than the definite causal order bound.
