论文标题
评估非平衡谐波动力学的初始相关性在熵产量中的作用
Assessing the role of initial correlations in the entropy production rate for non-equilibrium harmonic dynamics
论文作者
论文摘要
熵产生提供了一种通用方法，用于陈述非平衡情景的热力学第二定律。在开放的量子系统动力学中，它也可以用作不可逆性程度的有用量词。在这项工作中，我们通过研究两个谐波振荡器的系统与当地浴室独立相互作用，阐明了相关性，系统的初始制备和非马克维亚性之间的关系。他们的动力学用时间局部主方程描述，可以在数值和分析上求解，表明系统的初始状态的整体纯度会影响熵产生速率的行为，并且后者在代数上取决于表征初始状态的纠缠。
Entropy production provides a general way to state the second law of thermodynamics for non-equilibrium scenarios. In open quantum system dynamics, it also serves as a useful quantifier of the degree of irreversibility. In this work we shed light on the relation between correlations, initial preparation of the system and non-Markovianity by studying a system of two harmonic oscillators independently interacting with their local baths. Their dynamics, described by a time-local master equation, is solved to show - both numerically and analytically - that the global purity of the initial state of the system influences the behaviour of the entropy production rate and that the latter depends algebraically on the entanglement that characterise the initial state.
