Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chaotic dynamics of Bose-Einstein condensate in a density-dependent
  gauge field   In this work we study the effect of density-dependent gauge field on the
collective dynamics of a harmonically trapped Bose-Einstein condensate, beyond
the linear response regime. The densitydependent gauge field, as a backaction
of the condensate, can in turn affect the condensate dynamics, resulting in
highly nonlinear equations of motion. We find that the dipole and breathing
oscillations of the condensate along the direction of gauge field are coupled
by this field. For a quasi-onedimensional condensate, this coupling makes the
collective motion quasiperiodic. While for a quasitwo-dimensional condensate,
the gauge field can also induce a Hall effect, manifested as an additional
coupling between dipole and breathing oscillations in perpendicular direction.
When the densitydependent gauge field is strong, the interplay between these
oscillations can cause the collective dynamics of the condensate to become
chaotic. Our findings reveal an important effect of dynamical gauge field on
the nonlinear dynamics of a Bose-Einstein condensate.

5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an