Degeneracy induced scaling of the correlation length for periodic models
High Energy Physics - Theory
2015-06-04 v2
Abstract
The broken symmetric phase of scalar models exhibits an infrared fixed point which is induced by the degenerate effective potential. The definition of the correlation length in the infrared regime enables us to determine the type of the phase transition in the model. It is shown that the massive sine-Gordon model exhibits a continuous, while the layered sine-Gordon model has an infinite order Kosterlitz-Thouless type phase transition.
Keywords
Cite
@article{arxiv.1204.0440,
title = {Degeneracy induced scaling of the correlation length for periodic models},
author = {S. Nagy},
journal= {arXiv preprint arXiv:1204.0440},
year = {2015}
}
Comments
22 pages, 9 figures, final version, to appear in Nucl. Phys. B