J 2023

Black holes without Cauchy horizons and integrable singularities

OVALLE ARAYA, Jorge Iván

Basic information

Original name

Black holes without Cauchy horizons and integrable singularities

Authors

OVALLE ARAYA, Jorge Iván (152 Chile, guarantor, belonging to the institution)

Edition

Physical Review D, 2023, 2470-0010

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/23:A0000293

Organization unit

Institute of physics in Opava

UT WoS

000989828400008

Keywords in English

nonsingular black holes;Cauchy horizon;null hypersurface;Cauchy hypersurface;strong cosmic censorship conjecture

Tags

Tags

International impact, Reviewed
Změněno: 13/2/2024 14:53, Mgr. Pavlína Jalůvková

Abstract

V originále

In general relativity, nonsingular black holes contain (at least) a Cauchy horizon, a null hypersurface beyond which determinism breaks down. Even though the strong cosmic censorship conjecture establishes the impossibility of extending spacetime beyond this region, in this paper we investigate how far we can go, without invoking this conjecture, in the building of a physically reasonable black hole without a Cauchy hypersurface. Following this reasoning, we find a black hole lacking of Cauchy horizon, asymptotically flat and satisfying either the strong or dominant energy condition. The above is possible by demanding integrable singularity for the Ricci scalar, whose direct consequence is the appearance of finite tidal forces. We show that the spacetime inside the event horizon represents a warped anti-de Sitter spacetime, which might be interpreted in terms of a finite superposition of configurations.