量子多体系统非线性密度响应的格林函数视角

IF 1.3 3区物理与天体物理 Q3 PHYSICS, MATHEMATICAL

Journal of Statistical Physics Pub Date : 2025-05-24 DOI:10.1007/s10955-025-03454-5

Jan Vorberger, Tobias Dornheim, Maximilian P. Böhme, Zhandos A. Moldabekov, Panagiotis Tolias

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引用次数: 0

摘要

利用热力学格林函数理论导出了高阶密度响应函数的运动方程。我们还推导了高阶广义介电函数和极化函数的表达式。此外，我们将高阶响应函数和高阶碰撞积分在Martin-Schwinger层次结构中联系起来。我们期望我们的结果与研究各种量子多体系统（如极端温度、密度和压力下的物质）高度相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Green’s Function Perspective on the Nonlinear Density Response of Quantum Many-Body Systems

We derive equations of motion for higher order density response functions using the theory of thermodynamic Green’s functions. We also derive expressions for the higher order generalized dielectric functions and polarization functions. Moreover, we relate higher order response functions and higher order collision integrals within the Martin–Schwinger hierarchy. We expect our results to be highly relevant to the study of a variety of quantum many-body systems such as matter under extreme temperatures, densities, and pressures.

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来源期刊

Journal of Statistical Physics 物理-物理：数学物理

CiteScore

3.10

自引率

12.50%

发文量

152

审稿时长

3-6 weeks

期刊介绍： The Journal of Statistical Physics publishes original and invited review papers in all areas of statistical physics as well as in related fields concerned with collective phenomena in physical systems.