c-function and central charge of the sine-Gordon model from the non-perturbative renormalization group flow

In this paper we study the c-function of the sine-Gordon model taking explicitly into account the periodicity of the interaction potential. The integration of the c-function along trajectories of the non-perturbative renormalization group flow gives access to the central charges of the model in the...

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Bibliographic Details
Main Authors: V. Bacsó, N. Defenu, A. Trombettoni, I. Nándori
Format: Article
Language:English
Published: Elsevier 2015-12-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321315003764