Entropy Budget for Hawking Evaporation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10372459" target="_blank" >RIV/00216208:11320/17:10372459 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3390/universe3030058" target="_blank" >http://dx.doi.org/10.3390/universe3030058</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/universe3030058" target="_blank" >10.3390/universe3030058</a>

Result language

angličtina

Original language name

Entropy Budget for Hawking Evaporation

Original language description

Blackbody radiation, emitted from a furnace and described by a Planck spectrum, contains (on average) an entropy of 3.9 +/- 2.5 bits per photon. Since normal physical burning is a unitary process, this amount of entropy is compensated by the same amount of hidden information in correlations between the photons. The importance of this result lies in the posterior extension of this argument to the Hawking radiation from black holes, demonstrating that the assumption of unitarity leads to a perfectly reasonable entropy/information budget for the evaporation process. In order to carry out this calculation, we adopt a variant of the average subsystem approach, but consider a tripartite pure system that includes the influence of the rest of the universe, and which allows young black holes to still have a non-zero entropy; which we identify with the standard Bekenstein entropy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10300 - Physical sciences

Project

<a href="/en/project/GB14-37086G" target="_blank" >GB14-37086G: Albert Einstein Center for Gravitation and Astrophysics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

UNIVERSE

ISSN

2218-1997

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

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UT code for WoS article

000411978800007

EID of the result in the Scopus database

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