Topological States with Broken Translational and Time-Reversal Symmetries in a Honeycomb-Triangular Lattice
Quantum Gases
2015-06-10 v2 Superconductivity
Abstract
We study fermions in a lattice, with on-site and nearest neighbor attractive interactions between two spin species. We consider two geometries: both spins in a triangular lattice, and a mixed geometry with up-spins in honeycomb and down-spins in triangular lattices. We focus on the interplay between spin-population imbalance, on-site and valence bond pairing, and order parameter symmetry. The mixed geometry leads to a rich phase diagram of topologically non-trivial phases. In both geometries, we predict order parameters with simultaneous time-reversal and translational symmetry breaking.
Keywords
Cite
@article{arxiv.1409.6563,
title = {Topological States with Broken Translational and Time-Reversal Symmetries in a Honeycomb-Triangular Lattice},
author = {R. Sarjonen and P. Törmä},
journal= {arXiv preprint arXiv:1409.6563},
year = {2015}
}