On the propagation of a perturbation in an anharmonic system
Mathematical Physics
2016-02-11 v2 math.MP
Abstract
We give a not trivial upper bound on the velocity of disturbances in an infinitely extended anharmonic system at thermal equilibrium. The proof is achieved by combining a control on the non equilibrium dynamics with an explicit use of the state invariance with respect to the time evolution.
Keywords
Cite
@article{arxiv.math-ph/0607023,
title = {On the propagation of a perturbation in an anharmonic system},
author = {P. Buttà and E. Caglioti and S. Di Ruzza and C. Marchioro},
journal= {arXiv preprint arXiv:math-ph/0607023},
year = {2016}
}
Comments
14 pages