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Open AccessFeature PaperArticle

Pre-Big-Bang Black-Hole Remnants and Past Low Entropy

1
CPT, Aix-Marseille Université, Université de Toulon, CNRS, F-13288 Marseille, France
2
Departamento de Física Teórica, University of the Basque Country UPV/EHU, E-48940 Leioa, Spain
*
Authors to whom correspondence should be addressed.
Universe 2018, 4(11), 129; https://doi.org/10.3390/universe4110129
Received: 3 October 2018 / Revised: 9 November 2018 / Accepted: 12 November 2018 / Published: 18 November 2018
(This article belongs to the Special Issue Bounce Cosmology)
Dark matter could be composed by black-hole remnants formed before the big-bang era in a bouncing cosmology. This hypothetical scenario has implications on the issue of the arrow of time: it upsets a common attribution of past low entropy to the state of the geometry and suggests a possible realisation of the perspectival interpretation of past low entropy. View Full-Text
Keywords: bounce; bouncing cosmology; remnants; past hypothesis; loop quantum gravity bounce; bouncing cosmology; remnants; past hypothesis; loop quantum gravity
MDPI and ACS Style

Rovelli, C.; Vidotto, F. Pre-Big-Bang Black-Hole Remnants and Past Low Entropy. Universe 2018, 4, 129.

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