Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gapless Superfluid in $SU(2n+1)$ Fermions Systems   We investigate the generalized Hubbard model of $(2n+1)$ Fermion species
interacting via a symmetric contact attraction potential. We prove that the
ground state of such system is a gapless superfluid, where a full Fermi surface
coexists with a superfluid. Moreover, doing so we prove the existence of a free
mode in a strongly interacting system, regardless of the potential strength.
This proof holds at the mean field level. A Grassmannian Gaussian integration
technique is used to deal with the problem. Our predictions may be relevant to
future high-spin cold atoms experiments.

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The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: econ
17
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: dg-ga
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
5
The categories of this paper are: gr-qc