Superfluid and Fermi liquid phases of Bose-Fermi mixtures in optical lattices

Details Superfluid and Fermi liquid phases of Bose-Fermi mixtures in optical lattices Superfluid and Fermi liquid phases of Bose-Fermi mixtures in optical lattices

2008-09-19

arxiv.org/abs/0809.3426v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

We describe interacting mixtures of ultracold bosonic and fermionic atoms in harmonically confined optical lattices. For a suitable choice of parameters we study the emergence of superfluid and Fermi liquid (non-insulating) regions out of Bose-Mott and Fermi-band insulators, due to finite Boson and Fermion hopping. We obtain the shell structure for the system and show that angular momentum can be transferred to the non-insulating regions from Laguerre-Gaussian beams, which combined with Bragg spectroscopy can reveal all superfluid and Fermi liquid shells.

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