Mott insulators and correlated superfluids in ultracold Bose-Fermi mixtures

Details Mott insulators and correlated superfluids in ultracold Bose-Fermi mixtures Mott insulators and correlated superfluids in ultracold Bose-Fermi mixtures

2007-06-26

arxiv.org/abs/0706.3799v1

Phys Rev A76, 043619 (2007)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevA.76.043619

We study the effects of interaction between bosons and fermions in a Bose-Fermi mixtures loaded in an optical lattice. We concentrate on the destruction of a bosonic Mott phase driven by repulsive interaction between bosons and fermions. Once the Mott phase is destroyed, the system enters a superfluid phase where the movements of bosons and fermions are correlated. We show that this phase has simultaneously correlations reminiscent of a conventional superfluid and of a pseudo-spin density wave order.

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