Topological superfluid in a fermionic bilayer optical lattice
Superconductivity
2015-06-11 v1 Quantum Gases
Abstract
In this paper, a topological superfluid phase with Chern number C=1 possessing gapless edge states and non-Abelian anyons is designed in a C=1 topological insulator proximity to an s-wave superfluid on an optical lattice with the effective gauge field and layer-dependent Zeeman field coupled to ultracold fermionic atoms pseudo spin. We also study its topological properties and calculate the phase stiffness by using the random-phase-approximation approach. Finally we derive the temperature of the Kosterlitz-Thouless transition by means of renormalized group theory. Owning to the existence of non-Abelian anyons, this C=1 topological superfluid may be a possible candidate for topological quantum computation.
Cite
@article{arxiv.1209.5463,
title = {Topological superfluid in a fermionic bilayer optical lattice},
author = {Ya-Jie Wu and Jing He and Chun-Li Zang and Su-Peng Kou},
journal= {arXiv preprint arXiv:1209.5463},
year = {2015}
}
Comments
15 pages, 8 figures