Determining all thermodynamic transport coefficients for an interacting large N quantum field theory
Abstract
Thermodynamic transport coefficients can be calculated directly from quantum field theory without requiring analytic continuation to real time. We determine all second-order thermodynamic transport coefficients for the uncharged N-component massless (critical) scalar field theory with quartic interaction in the large N limit, for any value of the coupling. We find that in the large N limit, all thermodynamic transport coefficients for the interacting theory can be expressed analytically in terms of the in-medium mass and sums over modified Bessel functions. We expect our technique to allow a similar determination of all thermodynamic transport coefficients for all theories that are solvable in the large N limit, including certain gauge theories.
Keywords
Cite
@article{arxiv.2208.10502,
title = {Determining all thermodynamic transport coefficients for an interacting large N quantum field theory},
author = {Max Weiner and Paul Romatschke},
journal= {arXiv preprint arXiv:2208.10502},
year = {2023}
}
Comments
19 pages, 3 figures