J 2017

Energy conditions of non-singular black hole spacetimes in conformal gravity

TOSHMATOV, Bobir, Cosimo BAMBI, Bobomurat AHMEDOV, Ahmadjon ABDUJABBAROV, Zdeněk STUCHLÍK et. al.

Basic information

Original name

Energy conditions of non-singular black hole spacetimes in conformal gravity

Authors

TOSHMATOV, Bobir (860 Uzbekistan, guarantor, belonging to the institution), Cosimo BAMBI (380 Italy), Bobomurat AHMEDOV (860 Uzbekistan), Ahmadjon ABDUJABBAROV (860 Uzbekistan) and Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution)

Edition

European Physical Journal C, 2017, 1434-6044

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:

The European Physical Journal C

RIV identification code

RIV/47813059:19240/17:A0000010

Organization unit

Faculty of Philosophy and Science in Opava

DOI

http://dx.doi.org/10.1140/epjc/s10052-017-5112-2

UT WoS

000407634200004

Keywords in English

conformal gravity; energy conditions; black holes

Tags

International impact, Reviewed

Links

GB14-37086G, research and development project.
Změněno: 4/4/2018 15:24, RNDr. Jan Hladík, Ph.D.

Abstract

V originále

Conformal gravity can elegantly solve the problem of spacetime singularities present in Einstein's gravity. For every physical spacetime, there is an infinite family of conformally equivalent singularity-free metrics. In the unbroken phase, every non-singular metric is equivalent and can be used to infer the physical properties of the spacetime. In the broken phase, a Higgs-like mechanism should select a certain vacuum, which thus becomes the physical one. However, in the absence of the complete theoretical framework we do not know how to select the right vacuum. In this paper, we study the energy conditions of non-singular black hole spacetimes obtained in conformal gravity assuming they are solutions of Einstein's gravity with an effective energy-momentum tensor. We check whether such conditions can be helpful to select the vacuum of the broken phase.
Displayed: 1/11/2024 10:03