Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-Temperature Renormalization Group Analysis of Interaction Effects
  in 2D Lattices of Bose-Einstein Condensates   By using a renormalization group analysis, we study the effect of
interparticle interactions on the critical temperature at which the
Berezinskii-Kosterlitz-Thouless (BKT) transition occurs for Bose-Einstein
condensates loaded at finite temperature in a 2D optical lattice. We find that
the critical temperature decreases as the interaction energy decreases; when
U/J=36/\pi one has a vanishing critical temperature, signaling the possibility
of a quantum phase transition of BKT type.

35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ