Kasner epochs, eras and eons

Feb 22, 2024
6 pages
Published in:
  • Phys.Rev.D 110 (2024) 4, L041503
  • Published: Aug 9, 2024
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Abstract: (APS)
As shown in the classic work of Belinski, Khalatnikov and Lifshitz, the approach to a generic spacelike singularity in general relativity consists of a sequence of epochs and eras in which the metric is locally Kasner, connected by brief transitions. When quantum gravity effects are included, we argue that a new type of transition arises, giving rise to Kasner eons: periods which are dominated by emergent physics at each energy scale. We comment on the different ways in which the Einsteinian eon may come to an end and show explicitly how additional Kasner eons arise in the interior of a black hole solution due to higher-derivative corrections.
Note:
  • 13 pages, 2 figures; v2: minor changes, title modified to comply with journal criteria; version to appear in PRD
  • quantum gravity: effect
  • derivative: high
  • Kasner
  • Lifshitz
  • singularity
  • general relativity
  • black hole
  • Einstein
  • correction: higher-order