Aspects of the Homogeneous Sine-Gordon models
Aspects of the Homogeneous Sine-Gordon models
复制标题
齐次 Sine-Gordon 模型的各个方面
DOI:
10.22323/1.008.0006
复制
发表时间:
2002
期刊:
影响因子:
--
通讯作者:
J. Miramontes
中科院分区:
文献类型:
--
作者:
P. Dorey;J. Miramontes
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.