Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum systems of ultra-cold bosons with customized inter-particle
  interactions   Recent progress in cooling and trapping of polarized clouds of chromium
$^{52}Cr$, dysprosium $^{164}Dy$ and erbium $^{168}Er$ opens a road-map to
quantum systems where shapes of inter-particle interactions can be customized.
The main purpose of this work is to get a deeper insight on a role which the
overall shape of the inter-particle interaction plays in a context of trapped
ultra-cold bosons. We show that strong inter-particle repulsion inevitably
leads to multi-hump fragmentation of the ground state. The fragmentation
phenomenon is universal -- it takes place in traps of different dimensionality
and topologies and for very broad classes of repulsive inter-particle
potentials. The physics behind is identified and explained.

15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs