论文标题
信息波动定理的开放量子两分系统
Information Fluctuation Theorem for an Open Quantum Bipartite System
论文作者
论文摘要
我们研究了与储层相连的量子两分系统的任意非平衡动力学。为了表征它，我们提出了一个波动定理（FT），该定理明确解决了热力学演化过程中子系统的量子相关性。为了我们的目的，我们在时间前进和时间转移的过渡概率中完全指定本地和全球状态。鉴于两点测量方案，只有全球状态受测量的约束，而当地状态仅用作复合系统的增强信息。我们以这种形式特异性地得出了ft，该形式将局部系统的熵产生与时间反向过渡的变化相关联。这也导致了有用的热力学不平等，我们通过在Werner状态的等温过程的示例来说明其优势。
We study an arbitrary non-equilibrium dynamics of a quantum bipartite system coupled to a reservoir. For its characterization, we present a fluctuation theorem (FT) that explicitly addresses the quantum correlation of subsystems during the thermodynamic evolution. To our aim, we designate the local and the global states altogether in the time-forward and the time-reversed transition probabilities. In view of the two-point measurement scheme, only the global states are subject to measurements whereas the local states are used only as an augmented information on the composite system. We specifically derive a FT in such a form that relates the entropy production of local systems in the time-forward transition to the change of quantum correlation in the time-reversed transition. This also leads to a useful thermodynamic inequality and we illustrate its advantage by an example of an isothermal process on Werner states.
