$\mathbb Z_2$ slave-spin theory of a strongly correlated Chern insulator
Strongly Correlated Electrons
2015-12-22 v1 Quantum Gases
Abstract
We calculate the phase diagram of the topological honeycomb model in the presence of strong interactions. We concentrate on half filling and employ a slave-spin method to find a band insulator with staggered density, a spin-density-wave and a Mott insulating phase. Both the band insulator and the spin-density wave come in various topological varieties. Finally, we calculate the response function relevant for lattice modulation spectroscopy with cold atomic gases in optical lattices.
Keywords
Cite
@article{arxiv.1410.2001,
title = {$\mathbb Z_2$ slave-spin theory of a strongly correlated Chern insulator},
author = {Diana Prychynenko and Sebastian D. Huber},
journal= {arXiv preprint arXiv:1410.2001},
year = {2015}
}
Comments
7 pages, 4 figures