Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unconventional topological superconductivity and phase diagram for an
  effective two-orbital model as applied to twisted bilayer graphene   We consider the superconducting and Mott-insulating states for the twisted
bilayer graphene, modeled as two narrow-band system of electrons with
appreciable intraatomic Coulomb interactions. The interaction induces kinetic
exchange which leads to real-space, either triplet- or singlet-spin pairing, in
direct analogy to heavy-fermions and high-temperature superconductors. By
employing the statistically-consistent Gutzwiller method, we construct
explicitly the phase diagram as a function of electron concentration for the
spin-triplet $d_{x^2 - y^2}+id_{xy}$ paired case, as well as determine the
topological edge states. The model reproduces principal features observed
experimentally in a semi-quantitative manner. The essential role of electronic
correlations in driving both the Mott-insulating and superconducting
transitions is emphasized. The transformation of the spin-triplet state into
its spin-singlet analogue is also analyzed, as well as the appearance of the
phase separated superconducting+Mott-insulating state close to the half
filling.

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The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg