Uncertainty relations are studied for a characterization of topological-band insulator transitions in 2D gapped Dirac materials isostructural with graphene. We show that the relative or Kullback-Leibler entropy in position and momentum spaces, and the standard variance-based uncertainty relation, give sharp signatures of topological phase transitions in these systems.
@article{arxiv.1502.07479,
title = {Entropic uncertainty relations and topological-band insulator transitions in 2D gapped Dirac materials},
author = {Elvira Romera and Manuel Calixto},
journal= {arXiv preprint arXiv:1502.07479},
year = {2015}
}
Comments
11 pages, 5 figures. To appear in Journal of Physics: Condensed Matter