近日，德国弗莱堡大学的Salvatore Gatto&Alessandra Colla及其研究团队取得一项新进展。经过不懈努力，他们使用最小耗散原理揭示自旋玻色子模型的量子热力学。相关研究成果已于2024年9月12日在国际知名学术期刊《物理评论A》上发表。

该研究团队采用基于层次运动方程（HEOM）方法的数值精确量子动力学处理，研究了在超越弱耦合极限并涵盖非绝热和绝热机制的参数范围内，环境对工作、热量和熵产生等量的影响。

结果揭示了与弱耦合形式下的工作、热量和熵产生之间的显著差异，并对此进行了详细分析。

据悉，一种基于最小耗散原理、近期发展起来的开放量子系统热力学方法，被应用于自旋-玻色子模型。

附：英文原文

Title: Quantum thermodynamics of the spin-boson model using the principle of minimal dissipation

Author: Salvatore Gatto, Alessandra Colla, Heinz-Peter Breuer, Michael Thoss

Issue&Volume: 2024/09/12

Abstract: A recently developed approach to the thermodynamics of open quantum systems, on the basis of the principle of minimal dissipation, is applied to the spin-boson model. Employing a numerically exact quantum dynamical treatment based on the hierarchical equations of motion (HEOM) method, we investigate the influence of the environment on quantities such as work, heat, and entropy production in a range of parameters which go beyond the weak-coupling limit and include both the nonadiabatic and the adiabatic regimes. The results reveal significant differences to the weak-coupling forms of work, heat, and entropy production, which are analyzed in some detail.

DOI: 10.1103/PhysRevA.110.032210

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.032210

来源：科学网 小柯机器人