Beta-functions of non-linear $\sigma$-models for disordered and interacting electron systems
Disordered Systems and Neural Networks
2017-07-11 v2 Statistical Mechanics
High Energy Physics - Theory
Abstract
We provide and study complete sets of one-loop renormalization group equations of several Finkel'stein non-linear -models, the effective field theories describing the diffusive quantum fluctuations in correlated disordered systems. We consider different cases according to the presence of certain symmetries induced by the original random Hamiltonians, and we show that, for interacting systems, the Cartan's classification of symmetry classes is not enough to uniquely determine their scaling behaviors.
Cite
@article{arxiv.1610.05691,
title = {Beta-functions of non-linear $\sigma$-models for disordered and interacting electron systems},
author = {Luca Dell'Anna},
journal= {arXiv preprint arXiv:1610.05691},
year = {2017}
}
Comments
16 pages, 4 figures, final version for the special issue "Many-Body Localization" in Annalen der Physik