Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entropy Conservation in the Transition of Schwarzschild-de Sitter space
  to de Sitter space through tunneling   We revisit the Parikh-Wilczek tunneling through the de Sitter horizon and
obtain the tunneling rate in Schwarzschild-de Sitter space, which is
non-thermal and closely related to the change of entropy. We discuss the
thermodynamics of Schwarzschild-de Sitter space and show existence of
correlation which ensured the conservation of the total entropy in the
transition process of Schwarzschild-de Sitter space to de Sitter space. The
correlation and the conserved entropy enlighten a way to explain the entropy in
empty de Sitter space.

18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
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The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio