Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cross-symmetry breaking of two-component discrete dipolar matter-wave
  solitons   We study the spontaneous symmetry breaking of dipolar Bose--Einstein
condensates trapped in stacks of two-well systems, which may be effectively
built as one-dimensional trapping lattices sliced by a repelling laser sheet.
If the potential wells are sufficiently deep, the system is modeled by coupled
discrete Gross--Pitaevskii equations with nonlocal self- and cross-interaction
terms representing dipole--dipole interactions. When the dipoles are not
polarized perpendicular or parallel to the lattice, the cross-interaction is
asymmetric, replacing the familiar symmetric two-component solitons with a new
species of cross-symmetric or -asymmetric ones. The orientation of the dipole
moments and the interwell hopping rate strongly affect the shapes of the
discrete two-component solitons as well as the characteristics of the
cross-symmetry breaking and the associated phase transition. The sub- and
super-critical types of cross-symmetry breaking can be controlled by either the
hopping rate between the components or the total norm of the solitons. The
effect of the interplay between the contact nonlinearity and the dipole angle
on the cross-symmetry breaking is also discussed.

32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio