Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of a few interacting bosons escaping from an open well   The dynamics of a few ultra-cold bosons tunneling from a one-dimensional
potential well into open space is studied. In such a system several decay
channels can be distinguished, each corresponding to a different number of
bosons escaping simultaneously. We show that as the interparticle interaction
strength is changed, the system undergoes transitions between distinct regimes
characterized by the dominance of different decay channels. These transitions
are reflected in the behavior of the decay rate of the system, which is
measurable experimentally. By means of a simple theoretical description we show
that the transitions occur at the points where a new decay channel becomes
energetically viable. The results provide insight into the behavior of decaying
few-body systems and may have potential interest to experiments.

22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas