Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A generic unitary black-hole evaporation model based on first principles   Based on the discretized horizon picture, we introduce a macroscopic
effective model of the horizon area quanta that encapsulates the features
necessary for black holes to evaporate consistently. The price to pay is the
introduction of a "hidden sector" that represents our lack of knowledge about
the final destination of the black hole entropy. We focus on the peculiar form
of the interaction between this hidden sector and the black hole enforced by
the self-consistency. Despite the expressive power of the model, we arrive at
several qualitative statements. Furthermore, we identify these statements as
features inside the microscopic density of states of the horizon quanta, with
the dimension of the configuration space being associated with the area per
quanta in Planck unit, a UV cutoff proportional to the amount of excess entropy
relative to Bekenstein's law at the end of evaporation, and a
zero-frequency-pole-like structure corresponding to, similarly, the amount of
excess entropy at IR limit. We then relate this nearly-zero-frequency structure
to the soft hairs proposed by Strominger et al., and argue that we should
consider deviating away from the zero frequency limit for soft hairs to
participate in the black hole evaporation.

4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn