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

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Published in Physical Review. A. 2015, vol. 91, no. 013604, p. 9
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.
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arXiv: 1411.3905
Note 9 pages, 3 figures
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Article (Published version) (356 Kb) - public document Free access
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Research group Groupe Giamarchi
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UCHINO, Shun, GIAMARCHI, Thierry. Two-leg fermionic Hubbard ladder system in the presence of state-dependent hopping. In: Physical Review. A, 2015, vol. 91, n° 013604, p. 9. https://archive-ouverte.unige.ch/unige:44947

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Deposited on : 2015-01-12

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