Gravitational entropy of Hayward black hole

被引：1

作者：

Iguchi, Hideo ^{[1
]}

机构：

[1] Nihon Univ, Coll Sci & Technol, Lab Phys, Narashinodai, Funabashi, Chiba 2748501, Japan

来源：

ANNALS OF PHYSICS | 2023年 / 453卷

关键词：

Black hole; Regular black hole; Gravitational entropy; Black hole thermodynamics; Weyl curvature hypothesis; EVENT HORIZON; INTERIOR; COLLAPSE; MODEL;

D O I：

10.1016/j.aop.2023.169331

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the gravitational entropy defined by the Weyl curvature for the Hayward black hole, which is one of the regular black holes without singularity in the event horizon. Using the definition by the ratio of the Weyl curvature scalar and the Kretschmann scalar as the entropy measure, we evaluate the gravitational entropy on the outer and inner horizons. We derive an expression for the curvature tensor of the Hayward black hole that is as independent as possible of the parameter added to the black hole and give an equation for the entropy measure explicitly independent of that parameter. The gravitational entropy density used in previous studies presents questions from the standpoint of mathematical rigor while we discuss possible improvements in its definition. We compare the results for the Hayward black hole with the analysis for the Reisner-Nordstom black hole and discuss the effect of singularity resolution on gravitational entropy.& COPY; 2023 Elsevier Inc. All rights reserved.

引用

页数：11

共 51 条

[1]

Rasheed DA, 2003, Arxiv, DOI arXiv:hep-th/9702087

[2] First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole [J].

Akiyama, Kazunori ;

Alberdi, Antxon ;

Alef, Walter ;

Asada, Keiichi ;

Azulay, Rebecca ;

Baczko, Anne-Kathrin ;

Ball, David ;

Balokovic, Mislav ;

Barrett, John ;

Bintley, Dan ;

Blackburn, Lindy ;

Boland, Wilfred ;

Bouman, Katherine L. ;

Bower, Geoffrey C. ;

Bremer, Michael ;

Brinkerink, Christiaan D. ;

Brissenden, Roger ;

Britzen, Silke ;

Broderick, Avery E. ;

Broguiere, Dominique ;

Bronzwaer, Thomas ;

Byun, Do-Young ;

Carlstrom, John E. ;

Chael, Andrew ;

Chan, Chi-kwan ;

Chatterjee, Shami ;

Chatterjee, Koushik ;

Chen, Ming-Tang ;

Chen, Yongjun ;

Cho, Ilje ;

Christian, Pierre ;

Conway, John E. ;

Cordes, James M. ;

Crew, Geoffrey B. ;

Cui, Yuzhu ;

Davelaar, Jordy ;

De Laurentis, Mariafelicia ;

Deane, Roger ;

Dempsey, Jessica ;

Desvignes, Gregory ;

Dexter, Jason ;

Doeleman, Sheperd S. ;

Eatough, Ralph P. ;

Falcke, Heino ;

Fish, Vincent L. ;

Fomalont, Ed ;

Fraga-Encinas, Raquel ;

Freeman, William T. ;

Friberg, Per ;

Fromm, Christian M. .

ASTROPHYSICAL JOURNAL LETTERS, 2019, 875 (01)

[3]

Ansoldi S, 2008, Arxiv, DOI arXiv:0802.0330

[4] The Bardeen model as a nonlinear magnetic monopole [J].

Ayón-Beato, E ;

García, A .

PHYSICS LETTERS B, 2000, 493 (1-2) :149-152

[5] Non-singular charged black hole solution for non-linear source [J].

Ayón-Beato, E ;

García, A .

GENERAL RELATIVITY AND GRAVITATION, 1999, 31 (05) :629-633

[6] New regular black hole solution from nonlinear electrodynamics [J].

Ayón-Beato, E ;

García, A .

PHYSICS LETTERS B, 1999, 464 (1-2) :25-29

[7] Regular black hole in general relativity coupled to nonlinear electrodynamics [J].

Ayon-Beato, E ;

Garcia, A .

PHYSICAL REVIEW LETTERS, 1998, 80 (23) :5056-5059

[8] Four-parametric regular black hole solution [J].

Ayón-Beato, E ;

García, A .

GENERAL RELATIVITY AND GRAVITATION, 2005, 37 (04) :635-641

[9]

Bardeen J. M., 1968, P INT C GR5 TBIL USS

[10] 4 LAWS OF BLACK HOLE MECHANICS [J].

BARDEEN, JM ;

CARTER, B ;

HAWKING, SW .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1973, 31 (02) :161-170

← 1 2 3 4 5 6 →