Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics and Phase Transition of a Gauss-Bonnet Black Hole in a
  Cavity   Considering a canonical ensemble, in which the temperature and the charge on
a wall of the cavity are fixed, we investigate the thermodynamics of a
D-dimensional Gauss-Bonnet black hole in a finite spherical cavity. Moreover,
it shows that the first law of thermodynamics is still satisfied. We then
discuss the phase structure and transition in both five and six dimensions.
Specifically, we show that there always exist two regions in the parameter
space. In one region, the system possesses one single phase. However in the
other region, there could coexist three phases and a van der Waals-like phase
transition occurs. Finally, we find that there is a fairly close resemblance in
thermodynamic properties and phase structure of a Gauss-Bonnet-Maxwell black
hole, either in a cavity or in anti-de Sitter space.

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The categories of this paper are: hep-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph