Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rotating Bose-Einstein condensate in an square optical lattice: vortex
  configuration for ground state in Josephson junction arrays regime   We consider a rotating Bose-Einstein condensate in a square optical lattice
in the regime in which the Hamiltonian of the system can be mapped onto a
Josephson junction array. In an approximate scheme where the couplings are
assumed uniform, the ground state energy is formulated in terms of the vortex
configuration. The results are compared with experimental results and also
previously reported results for frustrated XY model. We also show that vortex
configuration is robust with respect to change of couplings and therefore the
results remain valid when we consider more realistic model with non-uniform
couplings.

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The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga