Kinks and Particles in Non-integrable Quantum Field Theories
High Energy Physics - Theory
2007-05-23 v1
Abstract
In this talk we discuss an elementary derivation of the semi-classical spectrum of neutral particles in two field theories with kink excitations. We also show that, in the non-integrable cases, each vacuum state cannot generically support more than two stable particles, since all other neutral exitations are resonances, which will eventually decay.
Cite
@article{arxiv.0704.0549,
title = {Kinks and Particles in Non-integrable Quantum Field Theories},
author = {Giuseppe Mussardo},
journal= {arXiv preprint arXiv:0704.0549},
year = {2007}
}
Comments
17 pages, 8 figures, to appear in the proceedings of the XVth International Congress on Mathematical Physics, Rio de Janeiro, 6-11 August 2006