AI 中文总结
本文探究开放量子系统赝模模型满足细致平衡及热化的条件,结合厄米与非厄米赝模得到平坦有效温度分布,结果适用于需热力学一致性的赝模模型构建。
AI 中文摘要
赝模方法可精确且无近似地描述与热库任意强耦合的量子系统。通常,耦合到赝模的系统不会热化到该系统的吉布斯态:当系统-热库耦合为非微扰时,这一情况可预期,但当耦合渐近弱时则与常见热力学直觉冲突。我们探究赝模模型在何种条件下满足细致平衡(进而热化到系统吉布斯态),以及特定参数选择如何产生受限有限频率范围的“弱”细致平衡。还考虑了厄米与非厄米赝模结合得到平坦有效温度分布的情况。本文确立的结果与判据,适用于需要热力学一致性的赝模模型构建场景。
英文摘要
Pseudomode approaches allow for an exact and unapproximated description of a quantum system interacting arbitrarily strongly with a bath. In general, a system coupled to pseudomodes will not thermalize to the system's Gibbs state: This is to be expected when the system-bath coupling is non-perturbative, but conflicts with common thermodynamic intuition when the system-bath coupling is asymptotically weak. We explore under which circumstances pseudomode models satisfy detailed balance (and subsequently thermalize to the system Gibbs state) and how specific choices of parameters can force "weak" detailed balance that is restricted to a limited frequency range. A combination of Hermitian and non-Hermitian pseudomodes that yields a flat effective-temperature profile is also considered. The results and criteria established here are relevant for the construction of pseudomode models in contexts where thermodynamic consistency is required.
Comments12+12 pages, 5+2 figures