Effects of frozen double occupancies on fermions in optical lattices

ORAL

Abstract

We study the effects of ``frozen'' double occupancies in metastable states of 3D fermionic Hubbard model in the strongly interacting regime. Such long lived states can be created with ultracold fermions in an optical lattice, as the lattice potential is ramped up to access strongly correlated regimes. We shall discuss how the presence of the double occupancies affect anti-ferromagnetism in these systems. We will also discuss possible ``charge'' orders in these systems.

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Authors

  • Rajdeep Sensarma

    • Harvard University

  • Eugene Demler

    • Harvard
    • Harvard University

  • Ehud Altman

    • Weizmann Institute
    • Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot, 76100, Israel