Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Control of light-atom solitons and atomic transport by optical vortex
  beams propagating through a Bose-Einstein Condensate   We model propagation of far-red-detuned optical vortex beams through a
Bose-Einstein Condensate using nonlinear Schr\"odinger and Gross-Pitaevskii
equations. We show the formation of coupled light/atomic solitons that rotate
azimuthally before moving off tangentially, carrying angular momentum. The
number, and velocity, of solitons, depends on the orbital angular momentum of
the optical field. Using a Bessel-Gauss beam increases radial confinement so
that solitons can rotate with fixed azimuthal velocity. Our model provides a
highly controllable method of channelling a BEC and atomic transport.

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The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con