Exact Renormalization Group : A New Method for Blocking the Action
Statistical Mechanics
2015-05-13 v1
Abstract
We consider the exact renormalization group for a non-canonical scalar field theory in which the field is coupled to the external source in a special non linear way. The Wilsonian action and the average effective action are then simply related by a Legendre transformation up to a trivial quadratic form. An exact mapping between canonical and non-canonical theories is obtained as well as the relations between their flows. An application to the theory of liquids is sketched.
Cite
@article{arxiv.0903.1812,
title = {Exact Renormalization Group : A New Method for Blocking the Action},
author = {Jean-Michel Caillol},
journal= {arXiv preprint arXiv:0903.1812},
year = {2015}
}