论文标题
量子因果相关性和量子进化的非马克维亚性
Quantum causal correlations and non-Markovianity of quantum evolution
论文作者
论文摘要
基于因果关系度量 - 因果关系（时间）相关性的单调 - 由伪密度矩阵（PDM）形式主义引起的单调，引入了量子通道的非马克维亚度度量。以零温度在零温度下与玻体储层相互作用的众所周知的潮湿的Jaynes-cummings模型，例如，因果关系度量的单调性分解与暂时（Causal）相关的复兴与衰减率的负相关有关。此外，还提供了与其他知名的非马克维亚性措施进行比较的注释。
A non-Markovianity measure for quantum channels is introduced based on causality measure - a monotone of causal (temporal) correlations - arising out of the pseudo-density matrix (PDM) formalism which treats quantum correlations in space and time on an equal footing. Using the well known damped Jaynes-Cummings model of a two-level system interacting with a bosonic reservoir at zero temperature as an example, it is shown that breakdown of monotonicity of the causality measure is associated with the revival of temporal (causal) correlations hence with the negativity of the decay rate. Also, a note on the comparison with other well known non-Markovianity measures is given.
