Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymptotic symmetries in an optical lattice   It was recently remarked by Lutz [{\it Phys. Rev. A} {\bf 67} (2003),
051402(R)] that the equation for the marginal Wigner distribution in an optical
lattice admits a scale-free distribution corresponding to Tsallis statistics.
Here we show that this distribution is invariant under an asymptotic symmetry
of the equation, hence that this scale-free behavior can be understood in terms
of symmetry analysis.

26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex