Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bosonic Double Ring Lattice Under Artificial Gauge Fields   We consider a system of weakly interacting bosons confined on a planar double
ring lattice subjected to two artificial gauge fields. We determine its ground
state by solving coupled discrete non-linear Schr\"odinger equations at mean
field level. At varying inter-ring tunnel coupling, flux and interactions we
identify the vortex, Meissner and biased-ladder phases also predicted for a
bosonic linear ladder by a variational Ansatz. We also find peculiar features
associated to the ring geometry, in particular parity effects in the number of
vortices, and the appearance of a single vortex in the Meissner phase. We show
that the persistent currents on the rings carry precise information on the
various phases. Finally, we propose a way of observing the Meissner and vortex
phases via spiral interferogram techniques.

32
The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat