Multiband models for field theories with anomalous current dimension
High Energy Physics - Theory
2015-06-15 v3 Strongly Correlated Electrons
Abstract
We give simple examples of weakly coupled or free quantum mechanical systems that exhibit scale invariance with an anomalous dimension for a conserved current. In these models scaling as an exact symmetry only emerges in a large N limit, but it remains as an approximate symmetry even at finite N.
Cite
@article{arxiv.1504.02478,
title = {Multiband models for field theories with anomalous current dimension},
author = {Andreas Karch},
journal= {arXiv preprint arXiv:1504.02478},
year = {2015}
}
Comments
12 pages, 1 figure; v2: references added; v3: missing factor of z added in (5.4) and (5.5)