Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Build-up of coherence between initially-independent subsystems: The case
  of Bose-Einstein condensates   When initially-independent subsystems are made to contact, {\it coherence}
can develop due to interaction between them. We exemplify and demonstrate this
paradigm through several scenarios of two initially-independent Bose-Einstein
condensates which are allowed to collide. The build-up of coherence depends
strongly on time, interaction strength and other parameters of each condensate.
Implications are discussed.

24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th