Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Simple Mechanism for Unconventional Superconductivity in a Repulsive
  Fermion Model   Motivated by a scarcity of simple and analytically tractable models of
superconductivity from strong repulsive interactions, we introduce a simple
tight-binding lattice model of fermions with repulsive interactions that
exhibits unconventional superconductivity (beyond BCS theory). The model
resembles an idealized conductor-dielectric-conductor trilayer. The Cooper pair
consists of electrons on opposite sides of the dielectric, which mediates the
attraction. In the strong coupling limit, we use degenerate perturbation theory
to show that the model reduces to a superconducting hard-core Bose-Hubbard
model. Above the superconducting critical temperature, an analog of pseudo-gap
physics results where the fermions remain Cooper paired with a large
single-particle energy gap.

37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th