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arXiv · 0809.3426

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

Kaushik Mitra·C. J. Williams·C. A. R. Sá de Melo
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Abstract

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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Kaushik Mitra, C. J. Williams, C. A. R. Sá de Melo. 2008-09-19. Superfluid and Fermi liquid phases of Bose-Fermi mixtures in optical lattices. https://doi.org/10.1103/physreva.79.055601

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