Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Creating moving gap solitons in spin-orbit-coupled Bose-Einstein
  condensates   A simple and efficient method to create gap solitons is proposed in a
spin-orbit-coupled spin-1 Bose-Einstein condensate. We find that a free
expansion along the spin-orbit coupling dimension can generate two moving gap
solitons, which are identified from a generalized massive Thirring model. The
dynamics of gap solitons can be controlled by adjusting spin-orbit coupling
parameters.

16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex