Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrable models for asymmetric Fermi superfluids: Emergence of a new
  exotic pairing phase   We introduce an exactly-solvable model to study the competition between the
Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) and breached-pair superfluid in
strongly interacting ultracold asymmetric Fermi gases. One can thus investigate
homogeneous and inhomogeneous states on an equal footing and establish the
quantum phase diagram. For certain values of the filling and the interaction
strength, the model exhibits a new stable exotic pairing phase which combines
an inhomogeneous state with an interior gap to pair-excitations. It is proven
that this phase is the exact ground state in the strong coupling limit, while
numerical examples demonstrate that also at finite interaction strength it can
have lower energy than the breached-pair or LOFF states.

31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph