Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bose-Einstein condensate in a harmonic trap decorated with Dirac delta
  functions   We study Bose-Einstein condensation in a harmonic trap with a dimple
potential. We specifically consider the case of a tight and deep dimple
potential which is modelled by a Dirac delta function. This allows for simpler,
explicit numerical and analytical investigations of noninteracting gases. Thus,
the Schrodinger equation is used instead of the Gross-Pitaevski equation.
Calculating the atomic density, chemical potential, critical temperature and
condensate fraction, the role of the relative depth of the dimple potential
with respect to the harmonic trap in large condensate formation at enhanced
temperatures is clearly revealed.

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The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph