Information Technology, Engineering and Environment, Mawson Institute, University of South Australia, Adelaide 5095, Australia.
J Chem Phys. 2013 May 7;138(17):175102. doi: 10.1063/1.4802785.
We examine the Zeno and anti-Zeno effects in the context of non-Markovian dynamics in entangled spin-boson systems in contact with noninteracting reservoirs. We identify enhanced non-Markovian signatures in specific two-qubit partitions of a Bell-like initial state, with results showing that the intra-qubit Zeno effect or anti-Zeno effect occurs in conjunction with inter-qubit non-Markovian dynamics for a range of system parameters. The time domain of effective Zeno or anti-Zeno dynamics is about the same order of magnitude as the non-Markovian time scale of the reservoir correlation dynamics, and changes in decay rate due to the Zeno mechanism appears coordinated with information flow between specific two-qubit partitions. We extend our analysis to examine the Zeno mechanism-non-Markovianity link using the tripartite states arising from a donor-acceptor-sink model of photosynthetic biosystems.
我们研究了在与非相互作用储层接触的纠缠自旋-玻色子系统中，非马尔可夫动力学背景下的芝诺和反芝诺效应。我们在贝尔型初始态的特定双qubit 分区中识别出增强的非马尔可夫特征，结果表明，在一系列系统参数下，内qubit 芝诺效应或反芝诺效应与 qubit 间非马尔可夫动力学同时发生。有效芝诺或反芝诺动力学的时域与储层相关动力学的非马尔可夫时间尺度大致相同，并且由于芝诺机制导致的衰减率的变化似乎与特定双qubit 分区之间的信息流相协调。我们通过使用光合作用生物系统的供体-受体-接收器模型产生的三分体态，扩展了我们的分析以研究芝诺机制-非马尔可夫性的联系。
