Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large Range of Stability of Larkin-Ovchinnikov States for Imbalanced
  Fermi Gases in Optical Lattices   We show that Larkin-Ovchinnikov (LO) states with modulated superfluid order
parameters have a considerably larger range of stability in a lattice than in
the continuum. We obtain the phase diagram for the 3D cubic attractive Hubbard
model with an unequal population of up and down fermions using the
Bogoliubov-de Gennes fully self-consistent method. We find a strong modulation
of the local polarization that should provide a distinct signature for
detection of the LO phase. The shell structure in the presence of a trap
generates singularities in the density at the phase boundaries and provide
additional evidence for the LO phase. Depending on specific parameters, the LO
ground state occurs over a large range of population imbalance, involving 80%
of the atoms in the trap, and can exist up to an entropy s ~ 0.5 k_B per
fermion.

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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph