Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vortex lattice solutions to the Gross-Pitaevskii equation with
  spin-orbit coupling in optical lattices   Effective spin-orbit coupling can be created in cold atom systems using
atom-light interaction. We study the BECs in an optical lattice using the
Gross-Pitaevskii equation with spin-orbit coupling. Bloch states for the linear
equation are numerically obtained, and compared with stationary solutions to
the Gross-Pitaevskii equation with nonlinear terms. Various vortex lattice
states are found when the spin-orbit coupling is strong.

33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin