Fractional (Chern and topological) insulators
Strongly Correlated Electrons
2015-11-17 v1
Abstract
We review various features of interacting Abelian topological phases of matter in two spatial dimensions, placing particular emphasis on fractional Chern insulators (FCIs) and fractional topological insulators (FTIs). We highlight aspects of these systems that challenge the intuition developed from quantum Hall physics - for instance, FCIs are stable in the limit where the interaction energy scale is much larger than the band gap, and FTIs can possess fractionalized excitations in the bulk despite the absence of gapless edge modes.
Cite
@article{arxiv.1410.5828,
title = {Fractional (Chern and topological) insulators},
author = {Titus Neupert and Claudio Chamon and Thomas Iadecola and Luiz H. Santos and Christopher Mudry},
journal= {arXiv preprint arXiv:1410.5828},
year = {2015}
}
Comments
15 pages, no figures, overview for proceedings of Nobel symposium on "New forms of matter: topological insulators and superconductors"