English

Two-leg fermionic Hubbard ladder system in the presence of state-dependent hopping

Quantum Gases 2015-01-08 v2

Abstract

We study a two-leg fermionic Hubbard ladder model with a state-dependent hopping. We find that, contrary to the case without a state-dependent hopping, for which the system has a superfluid nature regardless of the sign of the interaction at incommensurate filling, in the presence of such a hopping a spin-triplet superfluid, spin- density wave and charge-density wave phases emerge. We examine our results in the light of recent experiments on periodically-driven optical lattices in cold atoms. We give protocols allowing us to realize the spin-triplet superfluid elusive in the cold atoms.

Keywords

Cite

@article{arxiv.1411.3905,
  title  = {Two-leg fermionic Hubbard ladder system in the presence of state-dependent hopping},
  author = {Shun Uchino and Thierry Giamarchi},
  journal= {arXiv preprint arXiv:1411.3905},
  year   = {2015}
}

Comments

9 pages, 3 figures