Loop diagrams in the kinetic theory of waves
High Energy Physics - Theory
2024-04-24 v2 Statistical Mechanics
Chaotic Dynamics
Fluid Dynamics
Abstract
Recent work has given a systematic way for studying the kinetics of classical weakly interacting waves beyond leading order, having analogies with renormalization in quantum field theory. An important context is weak wave turbulence, occurring for waves which are small in magnitude and weakly interacting, such as those on the surface of the ocean. Here we continue the work of perturbatively computing correlation functions and the kinetic equation in this far-from-equilibrium state. In particular, we obtain the two-loop kinetic equation for waves with a cubic interaction. Our main result is a simple graphical prescription for the terms in the kinetic equation, at any order in the nonlinearity.
Keywords
Cite
@article{arxiv.2308.00740,
title = {Loop diagrams in the kinetic theory of waves},
author = {Vladimir Rosenhaus and Daniel Schubring and Md Shaikot Jahan Shuvo and Michael Smolkin},
journal= {arXiv preprint arXiv:2308.00740},
year = {2024}
}
Comments
18 pages + appendix, v2