Primordial black holes in third-order Lovelock gravity: Mass function, thermodynamics, and cosmological implications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0200704" target="_blank" >RIV/00216305:26620/26:0200704 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2212686425003607?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2212686425003607?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dark.2025.102167" target="_blank" >10.1016/j.dark.2025.102167</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Primordial black holes in third-order Lovelock gravity: Mass function, thermodynamics, and cosmological implications

Popis výsledku v původním jazyce

We study for the first time primordial black holes in the context of Lovelock gravity. We derive exact PBH solutions in third-order Lovelock gravity and analyze their thermodynamic and cosmological properties. A topological density that characterizes radiation emission is introduced, and through solving the metric equation f(r) = 0, we observe the presence of holographic dark energy density and matter density, as well as two additional densities associated with the second and third orders of Lovelock gravity. We investigate the relationship between mass fraction and the Hubble parameter, analyzing various primordial black hole formation scenarios and the evolution of the mass fraction. We derive the Friedmann equation, which is shown to agree with that obtained from the first law of thermodynamics in Gauss-Bonnet gravity. Our research also provides a physical interpretation of the Lovelock coupling, suggesting it is linked to the mass of the Higgs particle, and indicating that the Higgs field plays a role in determining the geometry of space-time.

Název v anglickém jazyce

Primordial black holes in third-order Lovelock gravity: Mass function, thermodynamics, and cosmological implications

Popis výsledku anglicky

We study for the first time primordial black holes in the context of Lovelock gravity. We derive exact PBH solutions in third-order Lovelock gravity and analyze their thermodynamic and cosmological properties. A topological density that characterizes radiation emission is introduced, and through solving the metric equation f(r) = 0, we observe the presence of holographic dark energy density and matter density, as well as two additional densities associated with the second and third orders of Lovelock gravity. We investigate the relationship between mass fraction and the Hubble parameter, analyzing various primordial black hole formation scenarios and the evolution of the mass fraction. We derive the Friedmann equation, which is shown to agree with that obtained from the first law of thermodynamics in Gauss-Bonnet gravity. Our research also provides a physical interpretation of the Lovelock coupling, suggesting it is linked to the mass of the Higgs particle, and indicating that the Higgs field plays a role in determining the geometry of space-time.

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

2025

Kód důvěrnosti údajů

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

Název periodika

Physics of the dark universe

ISSN

—

e-ISSN

2212-6864

Svazek periodika

50

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

001620976700001

EID výsledku v databázi Scopus

2-s2.0-105021970145