Ising model with a boundary magnetic field - an example of a boundary flow
High Energy Physics - Theory
2008-11-26 v2 Statistical Mechanics
Abstract
In hep-th/0312197 a nonperturbative proof of the g-theorem of Affleck and Ludwig was put forward. In this paper we illustrate how the proof of hep-th/0312197 works on the example of the 2D Ising model at criticality perturbed by a boundary magnetic field. For this model we present explicit computations of all the quantities entering the proof including various contact terms. A free massless boson with a boundary mass term is considered as a warm-up example.
Cite
@article{arxiv.hep-th/0410210,
title = {Ising model with a boundary magnetic field - an example of a boundary flow},
author = {Anatoly Konechny},
journal= {arXiv preprint arXiv:hep-th/0410210},
year = {2008}
}
Comments
1+20 pages, Latex, 2 eps figures; v2: references added