Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vortex reconnections in anisotropic trapped three-dimensional
  Bose-Einstein condensates   Quantum vortex reconnections can be considered as a fundamental unit of
interaction in complex turbulent quantum gases. Understanding the dynamics of
single vortex reconnections as elementary events is an essential precursor to
the explanation of the emergent properties of turbulent quantum gases. It is
thought that a lone pair of quantum vortex lines will inevitably interact given
a sufficiently long time. This paper investigates aspects of reconnections of
quantum vortex pairs imprinted in a Bose-Einstein condensate held in an
anisotropic three dimensional trap using an exact many-body treatment. In
particular the impact of the interaction strength and the trap anisotropy in
the reconnection time is studied. It is found that interaction strength has no
effect on reconnection time over short time scales and that the trap anisotropy
can cause the edge of the condensate to interfere with the reconnection
process. It is also found that the initially coherent system fragments very
slowly, even for relatively large interaction strength, and therefore the
system likes to stay condensed during the reconnections.

26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn