Small Spins of Primordial Black Holes from Random Geometries: Bekenstein-Hawking Entropy and Gravitational Wave Observations
Dec 12, 2018
Citations per year
Abstract: (arXiv)
Black hole entropy is a robust prediction of quantum gravity with no established phenomenological consequences to date. We use the Bekenstein-Hawking entropy formula and general-relativistic statistical mechanics to determine the probability distribution of random geometries uniformly sampled in phase space. We show that this statistics (in the limit ) is relevant to large curvature perturbations, resulting in a population of primordial black holes with zero natal spin. In principle, the identification of such a population at LIGO, Virgo, and future gravitational wave observatories could provide the first observational evidence for the statistical nature of black hole entropy.Note:
- 9 pages, 3 figures; v2: New section on general-relativistic statistical mechanics
- black hole: entropy
- black hole: spin
- spin: 0
- gravitational radiation
- quantum gravity
- statistical analysis
- VIRGO
- LIGO
References(9)
Figures(3)
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