Breaking BEC
High Energy Physics - Theory
2020-08-06 v1
Abstract
In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak coupling regime, the decoherence of the classical state is observed. The corresponding timescale is identified with the quantum break-time.
Cite
@article{arxiv.2003.10283,
title = {Breaking BEC},
author = {A. Kovtun and M. Zantedeschi},
journal= {arXiv preprint arXiv:2003.10283},
year = {2020}
}