Towards conditions for black-hole singularity-resolution in asymptotically safe quantum gravity
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Towards conditions for black-hole singularity-resolution in asymptotically safe quantum gravity. / Adéìféoba, Adémólá; Eichhorn, Astrid; Platania, Alessia Benedetta.
In: Classical and Quantum Gravity, Vol. 35, No. 22, 225007, 30.10.2018.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Towards conditions for black-hole singularity-resolution in asymptotically safe quantum gravity
AU - Adéìféoba, Adémólá
AU - Eichhorn, Astrid
AU - Platania, Alessia Benedetta
N1 - Funding Information: We thank Alfio Bonanno, Kevin Falls, Jan M Pawlowski and Dennis Stock for discussions. This research is supported by the DFG under grant no Ei-1037/1. Funding Information: This research is supported by the DFG under grant no Ei-1037/1. Publisher Copyright: © 2018 IOP Publishing Ltd.
PY - 2018/10/30
Y1 - 2018/10/30
N2 - We explore the fate of the curvature singularity of Schwarzschild (deSitter) black holes in asymptotically safe quantum gravity. Specifically, we upgrade the classical spacetime by including the running of the Newton coupling and cosmological constant. In this setting, the antiscreening character of the gravitational interaction can remove the singularity, yet a nonzero value of the cosmological constant in the ultraviolet appears to reintroduce it. We find hints that a finite value of the cosmological constant in the infrared is compatible with singularity resolution provided that the cosmological constant is driven to zero fast enough in the ultraviolet. We compare the corresponding bounds on the critical exponents to the literature.
AB - We explore the fate of the curvature singularity of Schwarzschild (deSitter) black holes in asymptotically safe quantum gravity. Specifically, we upgrade the classical spacetime by including the running of the Newton coupling and cosmological constant. In this setting, the antiscreening character of the gravitational interaction can remove the singularity, yet a nonzero value of the cosmological constant in the ultraviolet appears to reintroduce it. We find hints that a finite value of the cosmological constant in the infrared is compatible with singularity resolution provided that the cosmological constant is driven to zero fast enough in the ultraviolet. We compare the corresponding bounds on the critical exponents to the literature.
KW - asymptotically safe gravity
KW - black holes
KW - renormalization group
KW - singularity
UR - http://www.scopus.com/inward/record.url?scp=85056085887&partnerID=8YFLogxK
U2 - 10.1088/1361-6382/aae6ef
DO - 10.1088/1361-6382/aae6ef
M3 - Journal article
AN - SCOPUS:85056085887
VL - 35
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
SN - 0264-9381
IS - 22
M1 - 225007
ER -
ID: 388513663