Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Non Ergodic Property of Bose Gas with Weak Pair Interaction   In this paper we prove that Bose gas with weak pair interaction is non
ergodic system. In order to prove this fact we consider the divergences in some
nonequilibrium diagram technique. These divergences are analogous to the
divergences in the kinetic equations discovered by Cohen and Dorfman. We
develop the general theory of renormalization of such divergences and
illustrate it with some simple examples. The fact that the system is non
ergodic leads to the following consequence: to prove that the system tends to
the thermal equilibrium we should take into account its behavior on its
boundary. In this paper we illustrate this thesis with the Bogoliubov
derivation of the kinetic equations.

0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas