Entropy Budget for Hawking Evaporation

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Entropy Budget for Hawking Evaporation

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Entropy Budget for Hawking Evaporation

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/GB14-37086G" target="_blank" >GB14-37086G: Centrum Alberta Einsteina pro gravitaci a astrofyziku</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

UNIVERSE

ISSN

2218-1997

e-ISSN

—

Svazek periodika

3

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000411978800007

EID výsledku v databázi Scopus

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