Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superfluid Density of Neutrons in the Inner Crust of Neutron Stars: New
  Life for Pulsar Glitch Models   Calculations of the effects of band structure on the neutron superfluid
density in the crust of neutron stars made under the assumption that the
effects of pairing are small [N. Chamel, Phys. Rev. C 85, 035801 (2012)] lead
to moments of inertia of superfluid neutrons so small that the crust alone is
insufficient to account for the magnitude of neutron star glitches. Inspired by
earlier work on ultracold atomic gases in an optical lattice, we investigate
fermions with attractive interactions in a periodic lattice in the mean-field
approximation. The effects of band structure are suppressed when the pairing
gap is of order or greater than the strength of the lattice potential. By
applying the results to the inner crust of neutron stars, we conclude that the
reduction of the neutron superfluid density is considerably less than
previously estimated and, consequently, it is premature to rule out models of
glitches based on neutron superfluidity in the crust.

31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
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The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
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The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th