Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inhomogeneous Fermi mixtures at Unitarity: Bogoliubov-de Gennes vs.
  Landau-Ginzburg   We present an inhomogeneous theory for the low-temperature properties of a
resonantly interacting Fermi mixture in a trap that goes beyond the
local-density approximation. We compare the Bogoliubov-de Gennes and a
Landau-Ginzburg approach and conclude that the latter is more appropriate when
dealing with a first-order phase transition. Our approach incorporates the
state-of-the-art knowledge on the homogeneous mixture with a population
imbalance exactly and gives good agreement with the experimental density
profiles of Shin {\it et al}. [Nature {\bf 451}, 689 (2008)]. We calculate the
universal surface tension due to the observed interface between the
equal-density superfluid and the partially polarized normal state of the
mixture. We find that the exotic and gapless superfluid Sarma phase can be
stabilized at this interface, even when this phase is unstable in the bulk of
the gas.

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The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci