Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: p-wave superconductivity in weakly repulsive 2D Hubbard model with
  Zeeman splitting and weak Rashba spin-orbit coupling   We study the superconducting order in a two-dimensional square lattice
Hubbard model with weak repulsive interactions, subject to a Zeeman field and
weak Rashba spin-orbit interactions. Diagonalizing the non-interacting
Hamiltonian leads to two separate bands, and by deriving an effective
low-energy interaction we find the mean field gap equations for the
superconducting order parameter on the bands. Solving the gap equations just
below the critical temperature, we find that superconductivity is caused by
Kohn-Luttinger type interaction, while the pairing symmetry of the bands are
indirectly affected by the spin-orbit coupling. The dominating attractive
momentum channel of the Kohn-Luttinger term depends on the filling fraction $n$
of the system, and it is therefore possible to change the momentum dependence
of the order parameter by tuning $n$. Moreover, $n$ also determines which band
has the highest critical temperature. Rotating the magnetic field changes the
momentum dependence from states that for small momenta reduce to a chiral $p_x
\pm i p_y$ type state for out-of-plane fields, to a nodal p-wave type state for
purely in-plane fields.

20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom