Gravitational Collapse in Quantum Einstein Gravity
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Gravitational Collapse in Quantum Einstein Gravity. / Bonanno, Alfio; Koch, Benjamin; Platania, Alessia.
I: Foundations of Physics, Bind 48, Nr. 10, 01.10.2018, s. 1393-1406.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Gravitational Collapse in Quantum Einstein Gravity
AU - Bonanno, Alfio
AU - Koch, Benjamin
AU - Platania, Alessia
N1 - Funding Information: We would like to thank the organizers of the workshop Lemaître for their hospitality and for creating a highly stimulating scientific atmosphere. B.K. acknowledges Fondecyt 1161150. Proceedings based on the talk given by A.P. at the workshop Lemaître, “Black Holes, Spacetime Singularities and Gravitational Waves”, held at the Vatican observatory, 9th–12th May 2017. Publisher Copyright: © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2018/10/1
Y1 - 2018/10/1
N2 - The existence of spacetime singularities is one of the biggest problems of nowadays physics. According to Penrose, each physical singularity should be covered by a “cosmic censor” which prevents any external observer from perceiving their existence. However, classical models describing the gravitational collapse usually results in strong curvature singularities, which can also remain “naked” for a finite amount of advanced time. This proceedings studies the modifications induced by asymptotically safe gravity on the gravitational collapse of generic Vaidya spacetimes. It will be shown that, for any possible choice of the mass function, quantum gravity makes the internal singularity gravitationally weak, thus allowing a continuous extension of the spacetime beyond the singularity.
AB - The existence of spacetime singularities is one of the biggest problems of nowadays physics. According to Penrose, each physical singularity should be covered by a “cosmic censor” which prevents any external observer from perceiving their existence. However, classical models describing the gravitational collapse usually results in strong curvature singularities, which can also remain “naked” for a finite amount of advanced time. This proceedings studies the modifications induced by asymptotically safe gravity on the gravitational collapse of generic Vaidya spacetimes. It will be shown that, for any possible choice of the mass function, quantum gravity makes the internal singularity gravitationally weak, thus allowing a continuous extension of the spacetime beyond the singularity.
KW - Asymptotic safety
KW - Gravitational collapse
KW - Quantum gravity
UR - http://www.scopus.com/inward/record.url?scp=85051431911&partnerID=8YFLogxK
U2 - 10.1007/s10701-018-0195-7
DO - 10.1007/s10701-018-0195-7
M3 - Journal article
AN - SCOPUS:85051431911
VL - 48
SP - 1393
EP - 1406
JO - Foundations of Physics
JF - Foundations of Physics
SN - 0015-9018
IS - 10
ER -
ID: 388513728