Conformal Field Theory Approach to Quantum Impurity Problems
Condensed Matter
2008-02-03 v2 High Energy Physics - Theory
Abstract
A brief review is given of a new method for studying the critical behavior of quantum impurity problems, based on conformal field theory techniques, which I developed with Andreas Ludwig. Some results on the overscreened Kondo problem are reviewed. It is shown that the simple open and periodic fixed points, which occur in quantum spin chain impurity models, are related to each other by fusion.
Cite
@article{arxiv.cond-mat/9311054,
title = {Conformal Field Theory Approach to Quantum Impurity Problems},
author = {Ian Affleck},
journal= {arXiv preprint arXiv:cond-mat/9311054},
year = {2008}
}
Comments
Latex, 15 pages, LaTex, UBCTP-93-25, hard copy of figures available from maxwell@physics.ubc.ca