工作(物理)
背景(考古学)
高斯分布
统计物理学
量子
热力学过程
测地线
数学
计算机科学
物理
量子力学
数学分析
材料性能
生物
古生物学
作者
Mohammad Mehboudi,Harry J. D. Miller
出处
期刊:Physical review
日期:2022-06-21
卷期号:105 (6)
被引量:8
标识
DOI:10.1103/physreva.105.062434
摘要
Constructing optimal thermodynamic processes in quantum systems relies on managing the balance between the average excess work and its stochastic fluctuations. Recently it has been shown that two different quantum generalizations of thermodynamic length can be utilized to determine protocols with either minimal excess work or minimal work variance. These lengths measure the distance between points on a manifold of control parameters, and optimal protocols are achieved by following the relevant geodesic paths given some fixed boundary conditions. Here we explore this problem in the context of Gaussian quantum states that are weakly coupled to an environment and derive general expressions for these two forms of thermodynamic length. We then use this to compute optimal thermodynamic protocols for various examples of externally driven Gaussian systems with multiple control parameters.
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