Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orbital physics of polar Fermi molecules   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.

20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th