Publication details for Patrick DoreyDorey, Patrick & Miramontes, J. Luis (2002), Aspects of the homogeneous sine-Gordon models, Workshop on Integrable Theories, Solitons and Duality. Sao Paulo.
- Publication type: Conference Paper
- Further publication details on publisher web site
Author(s) from Durham
The physical mass scales that determine the behaviour of general (simply-laced) Homogeneous Sine-Gordon models are investigated by means of a study of their finite-size effects, using the thermodynamic Bethe ansatz. These models describe integrable multiparameter perturbations of the theory of level-k G-parafermions, where G is a Lie group. The parameters can be related to adjustable mass scales of stable and unstable particles. Our results confirm the presence of unstable particle states at generic values of k, as predicted at large k by semiclassical arguments.