论文标题
开放量子系统中传播的最大速度
Maximal Speed of Propagation in Open Quantum Systems
论文作者
论文摘要
我们证明了马尔可夫开放量子系统动力学的最大速度。动力学由满足von Neumann-Lindblad方程的量子通道的一参数半组描述。我们的结果说，动态发展的状态包含在合适的光锥内，直至多项式误差。我们还可以在光锥的斜坡上绑定一个，即最大传播速度。结果意味着在开放量子系统中固定状态局部扰动的传播速度的上限。
We prove a maximal velocity bound for the dynamics of Markovian open quantum systems. The dynamics are described by one-parameter semi-groups of quantum channels satisfying the von Neumann-Lindblad equation. Our result says that dynamically evolving states are contained inside a suitable light cone up to polynomial errors. We also give a bound on the slope of the light cone, i.e., the maximal propagation speed. The result implies an upper bound on the speed of propagation of local perturbations of stationary states in open quantum systems.
