Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Incommensurate spin-density wave in two-dimensional Hubbard model   We consider the magnetic phase diagram of the two-dimensional Hubbard model
on a square lattice. We take into account both spiral and collinear
incommensurate magnetic states. The possibility of phase separation of spiral
magnetic phases is taken into consideration as well. Our study shows that all
the listed phases appear to be the ground state at certain parameters of the
model. Relation of the obtained results to real materials, e.g. Cu-based
high-temperature superconductors, is discussed.

18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin