Introduction to renormalization
Statistical Mechanics
2007-05-23 v1 Disordered Systems and Neural Networks
Abstract
In these lectures I discuss peculiarities of the critical behaviour of ``non-ideal'' systems as it is explained by the renormalization group approach. Examples considered here include account of the single-ion anisotropy, structural disorder, frustrations. I introduce main ideas of renormalization and show how it serves the explanation of typical features of criticality in the above systems: softening of the phase transition, changes in the universality class, complicated effective critical behaviour.
Cite
@article{arxiv.cond-mat/0606139,
title = {Introduction to renormalization},
author = {Yu. Holovatch},
journal= {arXiv preprint arXiv:cond-mat/0606139},
year = {2007}
}
Comments
Lecture given at the Mochima spring school on foundations of statistical and mesoscopic physics, Mochima, Venezuela, June 2006