Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A tensorial description of particle perception in black-hole physics   In quantum field theory in curved backgrounds, one typically distinguishes
between objective, tensorial, quantities such as the Renormalized Stress-Energy
Tensor (RSET) and subjective, non-tensorial, quantities such as Bogoliubov
coefficients which encode perception effects associated with the specific
trajectory of a detector. In this work we propose a way to treat both objective
and subjective notions on an equal tensorial footing. For that purpose, we
define a new tensor which we will call the Perception Renormalized
Stress-Energy Tensor (PeRSET). The PeRSET is defined as the subtraction of the
RSET corresponding to two different vacuum states. Based on this tensor we can
define perceived energy densities and fluxes. The PeRSET helps to have a more
organized and systematic understanding of various results in the literature
regarding quantum field theory in black hole spacetimes. We illustrate the
physics encoded in this tensor by working out various examples of special
relevance.

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The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas