Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous Effects in a Trapped Bose-Einstein Condensate   We study the anomalous density in an ultra-cold trapped bose gas in a
variational framework, for both zero and finite temperature. We show that it is
finite in 1D, while it is logarithmically and linearly divergent in 2D and 3D.
The renormalization that we adopt is more reliable and compatible with the
variational scheme. The main outcome is that the anomalous and non condensate
densities are of the

28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
2
The categories of this paper are: math
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc