Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signatures of Fermion Pairing with Unconventional Symmetry around
  BCS-BEC Crossover in a Quasi-2D Lattice   We consider fermions on a 2D square lattice with a finite-range pairing
interaction, and obtain signatures for unconventional pair-symmetry states,
$d_{x^2-y^2}$ and extended-s ($s^*$), in the BCS-BEC crossover region. We find
that the fermion momentum distribution function, $v_k^2$, the ratio of the
Bogoliubov coefficients, $v_k/u_k$, and the Fourier transform of $v_k^2$ are
strikingly different for $d$- and $s^*$ symmetries in the crossover region. The
chemical potential and the gaps functions for both pairing symmetries show
several interesting features as a function of interaction. Fermionic atoms in
2D optical lattices may provide a way to test these signatures. We discuss
current generation cold atom experiments that may be utilized.

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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th