Detailed Information on Publication Record
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:
RIV identification code
RIV/47813059:19240/17:A0000010
Organization unit
Faculty of Philosophy and Science in Opava
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.