Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coexistence of antiferromagnetism and topological superconductivity on
  the honeycomb lattice Hubbard model   Motivated by the recent numerical simulations for doped $t$-$J$ model on the
honeycomb lattice, we study superconductivity of singlet and triplet pairing on
the honeycomb lattice Hubbard model. We show that a superconducting state with
coexisting spin-singlet and spin-triplet pairings is induced by the
antiferromagnetic order near half filling. The superconducting state we obtain
has a topological phase transition that separates a topologically trivial state
and a nontrivial state with Chern number two. Possible experimental realization
of such a topological superconductivity is also discussed.

12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat