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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

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

10308 - Astronomy (including astrophysics,space science)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Physics of the dark universe

ISSN

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e-ISSN

2212-6864

Volume of the periodical

50

Issue of the periodical within the volume

prosinec

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

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UT code for WoS article

001620976700001

EID of the result in the Scopus database

2-s2.0-105021970145