Aspects of the homogeneous sine-Gordon models

Dorey, Patrick; Miramontes, J. Luis

Abstract

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.

Citation

Dorey, P., & Miramontes, J. L. (2002). Aspects of the homogeneous sine-Gordon models.

• Conference Name: Workshop on Integrable Theories, Solitons and Duality
• Conference Location: Sao Paulo
• Publication Date: 2002-07
• Publisher URL: https://arxiv.org/abs/hep-th/0211174