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

Shun Uchino, Thierry Giamarchi

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Article number013604
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume91
Issue number1
DOIs
Publication statusPublished - 2015 Jan 6
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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