Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decay of phase-imprinted dark soliton in Bose-Einstein condensate at
  non-zero temperature   We study relaxation dynamics of dark soliton, created by a phase-imprinted
method, in a two-dimensional trapped Bose-Einstein condensate at non-zero
temperatures by using the projected Gross-Pitaevskii equation. At absolute zero
temperature, a dark soliton is known to decay with a snake instability. At
non-zero temperature, as we expected, we find that this snake instability
cannot be clearly seen as in the absolute zero temperature case because of the
presence of thermal fluctuations. However, we find that the decay rate, the
half width of the overlap integral with respect to the phase-imprinted initial
state, shows a power low decay as a function of the energy and finally remains
a non-zero value.

20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex