Exact results for the Boltzmann collision operator in $\lambda\phi^4$ theory
Nuclear Theory
2022-09-22 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We analytically determine all the eigenvalues and eigenfunctions of the linearized Boltzmann collision operator in massless scalar theory in the high-temperature (classical) regime. This is used to exactly compute the shear viscosity and particle diffusion transport coefficients of this system. The corresponding relaxation time approximation for this linearized Boltzmann equation is also derived.
Keywords
Cite
@article{arxiv.2209.10370,
title = {Exact results for the Boltzmann collision operator in $\lambda\phi^4$ theory},
author = {Gabriel S. Denicol and Jorge Noronha},
journal= {arXiv preprint arXiv:2209.10370},
year = {2022}
}
Comments
10 pages including supplemental material