Black Holes in Non-local Gravity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10495271" target="_blank" >RIV/00216208:11320/24:10495271 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/978-981-99-7681-2_36" target="_blank" >https://doi.org/10.1007/978-981-99-7681-2_36</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-981-99-7681-2_36" target="_blank" >10.1007/978-981-99-7681-2_36</a>

Result language

angličtina

Original language name

Black Holes in Non-local Gravity

Original language description

n this chapter, we present a status report of black hole-like solutions in non-local theories of gravity in which the Lagrangians are at least quadratic in curvature and contain specific non-polynomial (i.e., non-local) operators. In the absence of exact black hole solutions valid in the whole spacetime, most of the literature on this topic focus on approximate and simplified equations of motion, which could provide insights on the full non-linear solutions. Therefore, the largest part of this chapter is devoted to the linear approximation. We present results on stationary metric solutions (including both static and rotating cases) and dynamical spacetimes describing the formation of nonrotating mini black holes by the collapse of null shells. Non-local effects can regularize the curvature singularities in both scenarios, and, in the dynamical case, there exists a mass gap below which the formation of an apparent horizon can be avoided. In the final part, we discuss interesting attempts toward finding non-linear black hole solutions in non-local gravity. Throughout this chapter, instead of focusing on a particular non-local model, we present results valid for large classes of theories (to a feasible extent). This more general approach allows the comparison of similarities and differences of the various types of non-local gravity models.

Czech name

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Czech description

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Type

C - Chapter in a specialist book

CEP classification

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OECD FORD branch

10300 - Physical sciences

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Book/collection name

Handbook of Quantum Gravity

ISBN

978-981-9976-80-5

Number of pages of the result

31

Pages from-to

1427-1457

Number of pages of the book

4328

Publisher name

Springer

Place of publication

Singapore

UT code for WoS chapter

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