Goldstone excitations from spinodal instability
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
The squared mass of a complex scalar field is turned dynamically into negative by its O(2)-invariant coupling to a real field slowly rolling down in a quadratic potential. The emergence of gapless excitations is studied in real time simulations after spinodal instability occurs. Careful tests demonstrate that the Goldstone modes appear almost instantly after the symmetry breaking is over, much before thermal equilibrium is established.
Keywords
Cite
@article{arxiv.hep-ph/0203133,
title = {Goldstone excitations from spinodal instability},
author = {Sz. Borsanyi and A. Patkos and D. Sexty},
journal= {arXiv preprint arXiv:hep-ph/0203133},
year = {2009}
}
Comments
10 Latex pages, 8 Figures, version accepted for publication in PRD