Physical Properties of Schwarzschild-deSitter Event Horizon Induced by Stochastic Quantum Gravity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F21%3AA0000160" target="_blank" >RIV/47813059:19630/21:A0000160 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/1099-4300/23/5/511" target="_blank" >https://www.mdpi.com/1099-4300/23/5/511</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/e23050511" target="_blank" >10.3390/e23050511</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Physical Properties of Schwarzschild-deSitter Event Horizon Induced by Stochastic Quantum Gravity

Popis výsledku v původním jazyce

A new type of quantum correction to the structure of classical black holes is investigated. This concerns the physics of event horizons induced by the occurrence of stochastic quantum gravitational fields. The theoretical framework is provided by the theory of manifestly covariant quantum gravity and the related prediction of an exclusively quantum-produced stochastic cosmological constant. The specific example case of the Schwarzschild-deSitter geometry is looked at, analyzing the consequent stochastic modifications of the Einstein field equations. It is proved that, in such a setting, the black hole event horizon no longer identifies a classical (i.e., deterministic) two-dimensional surface. On the contrary, it acquires a quantum stochastic character, giving rise to a frame-dependent transition region of radial width delta r between internal and external subdomains. It is found that: (a) the radial size of the stochastic region depends parametrically on the central mass M of the black hole, scaling as delta r similar to M3; (b) for supermassive black holes delta r is typically orders of magnitude larger than the Planck length lP. Instead, for typical stellar-mass black holes, delta r may drop well below lP. The outcome provides new insight into the quantum properties of black holes, with implications for the physics of quantum tunneling phenomena expected to arise across stochastic event horizons.

Název v anglickém jazyce

Physical Properties of Schwarzschild-deSitter Event Horizon Induced by Stochastic Quantum Gravity

Popis výsledku anglicky

A new type of quantum correction to the structure of classical black holes is investigated. This concerns the physics of event horizons induced by the occurrence of stochastic quantum gravitational fields. The theoretical framework is provided by the theory of manifestly covariant quantum gravity and the related prediction of an exclusively quantum-produced stochastic cosmological constant. The specific example case of the Schwarzschild-deSitter geometry is looked at, analyzing the consequent stochastic modifications of the Einstein field equations. It is proved that, in such a setting, the black hole event horizon no longer identifies a classical (i.e., deterministic) two-dimensional surface. On the contrary, it acquires a quantum stochastic character, giving rise to a frame-dependent transition region of radial width delta r between internal and external subdomains. It is found that: (a) the radial size of the stochastic region depends parametrically on the central mass M of the black hole, scaling as delta r similar to M3; (b) for supermassive black holes delta r is typically orders of magnitude larger than the Planck length lP. Instead, for typical stellar-mass black holes, delta r may drop well below lP. The outcome provides new insight into the quantum properties of black holes, with implications for the physics of quantum tunneling phenomena expected to arise across stochastic event horizons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Entropy

ISSN

1099-4300

e-ISSN

—

Svazek periodika

23

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

„511-1“-„511-20“

Kód UT WoS článku

000653908800001

EID výsledku v databázi Scopus

2-s2.0-85105147831