Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dark Information in Black Hole with $\lambda\varphi$ Fluid   It has been shown that the nonthermal spectrum of Hawking radiation will lead
to information-carrying correlations between emitted particles in the
radiation. The mutual information carried by such correlations can not be
locally observed and hence is dark. With dark information, the black hole
information is conserved. In this paper, we look for the spherically symmetric
black hole solution in a $\lambda\varphi$ fluid model and investigate the
radiation spectrum and dark information of the black hole. The spacetime
structure of this black hole is similar to that of the Schwarzschild one, while
its horizon radius is decreased by the $\lambda\varphi$ fluid. By using the
statistical mechanical method, the nonthermal radiation spectrum is calculated.
This radiation spectrum is very different from the Schwarzschild case at its
last stage because of the effect of the $\lambda\varphi$ fluid. The
$\lambda\varphi$ fluid reduces the lifetime of the black hole, but increases
the dark information of the Hawking radiation.

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The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
2
The categories of this paper are: math