Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Breakdown of the local density approximation in interacting systems of
  cold fermions in strongly anisotropic traps   We consider spin-polarized mixtures of cold fermionic atoms on the BEC side
of the Feshbach resonance. We demonstrate that a strongly anisotropic confining
potential can give rise to a double-peak structure in the axial distribution of
the density difference and a polarization-dependent aspect ratio of the
minority species. Both phenomena appear as a result of the breakdown of the
local density approximation for the phase-separated regime. We speculate on the
implications of our findings for the unitary regime.

19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ