Diffuse relaxation approximation in a heated Fermi system
S.V. Lukyanov
TL;DR
This paper derives an expression for the two-particle relaxation time of collective excitations in a heated Fermi system, considering momentum-dependent diffusion and drift, and analyzes its temperature dependence.
Contribution
It introduces a generalized relaxation time expression accounting for momentum-dependent coefficients in a heated Fermi system.
Findings
Derived a new expression for relaxation time with momentum dependence
Analyzed the temperature dependence of relaxation processes
Provides a framework for kinetic theory in Fermi systems
Abstract
An expression for the two-particle relaxation time of collective excitations on a distorted Fermi surface in the diffusion approach to kinetic theory is obtained. The general case of momentum-dependent diffusion and drift coefficients is considered. The temperature dependence of the obtained expression is established.
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