Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics of Ideal Boson and Fermion Gases in the Static Taub
  Universe   Some thermodynamic quantities of nonrelativistic ideal boson and fermion
gases in the static Taub universe are derived to first order in a small
anisotropy parameter d which measuring the deformation from the spherical
Einstein universe. They are used to investigate the problem of how the
curvature anisotropy affects the thermodynamic behaviors of an ideal gas. It is
found that, when the universe is in the oblate configuration (i.e., d > 0), the
effect of curvature anisotropy is to increase the number of the fraction in the
Bose-Einstein condensation and to decrease the fermion distribution function at
low temperature. When the universe is in the prolate configuration (i.e., d <
0), the effects of curvature anisotropy on the thermodynamic quantities is
contrary to that in the oblate configuration. The density matrix of a two
particle system is evaluated and it is used to define the "statistical
interparticle potential" as an attempt to give a "statistical interpretation"
about the found thermodynamic behaviors. It is found that when the universe is
in the oblate (prolate) configuration the curvature anisotropy will enhance
(reduce) both the "statistic attraction" among the bosons and "statistical
repulsion" among the fermions. It is expected that such a behavior will also be
shown in the relativistic system.

27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio