Orbital physics of polar Fermi molecules

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Date: 
2012-09-19
Author(s): 

O. Dutta, T. Sowiński, M. Lewenstein

Reference: 

arXiv:1202.4158v5 [cond-mat.quant-gas]

We study a system of polar dipolar fermions in a two-dimensional optical lattice and show that multi-band Fermi-Hubbard model is necessary to discuss such system. By taking into account both on-site, and long-range interactions between different bands, as well as occupation-dependent inter- and intra-band tunneling, we predict appearance of novel phases in the strongly-interacting limit.