Stability of FFLO states in optical lattices with bilayer structure
Superconductivity
2013-01-16 v1
Abstract
We investigate the stability of the superfluid state in a bilayer fermionic optical lattice system with a confining potential, using the Bogoliubov de-Gennes equations. It is clarified that in the imbalanced case, the introduction of the interlayer hopping stabilizes the radial Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, while makes the angular FFLO state unstable. We also discuss the system size dependence of the superfluid ground state. It is clarified that in a certain ring region the A-FFLO state is indeed realized in a large system.
Keywords
Cite
@article{arxiv.1204.4187,
title = {Stability of FFLO states in optical lattices with bilayer structure},
author = {Yasuharu Okawauchi and Akihisa Koga},
journal= {arXiv preprint arXiv:1204.4187},
year = {2013}
}
Comments
6 pages, 11 figures