论文标题
非马克维亚开放系统中的热电流
Heat Current in Non-Markovian Open Systems
论文作者
论文摘要
我们将时间不断变化的矩阵产品运算符方法推广到非平衡量子传输问题。非平衡电流是通过表示为张量网络的生成函数的数值分化获得的。该方法在数值上是精确的，并且已完全考虑了非马克维亚效应。在运输过程中，一部分从浴缸流出进入系统和其他浴缸的热量，其余的则存储在系统浴耦合部分中。我们以自旋 - 玻色子模型为演示，以显示这种热流的细节以及两个浴室之间稳定电流的建立。
We generalize time-evolving matrix product operators method to nonequilibrium quantum transport problems. The nonequilibrium current is obtained via numerical differentiation of the generating functional which is represented as a tensor network. The approach is numerically exact and the non-Markovian effects are fully taken into account. In the transport process, a part of the heat that flows out from a bath flows into the system and other baths, and the rest is stored in the system-bath coupling part. We take the spin-boson model as a demonstration to show the details of this heat flowing and the establishment of a steady current between two baths.
