The BKL scenario, infrared renormalization, and quantum cosmology

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A discussion of inhomogeneity is indispensable to understand quantum cosmology, even if one uses the dynamics of homogeneous geometries as a first approximation. While a full quantization of inhomogeneous gravity is not available, a broad framework of effective field theory provides important ingredients for quantum cosmology. Such a setting also allows one to take into account lessons from the Belinski-Khalatnikov-Lifshitz (BKL) scenario. Based on several new ingredients, this article presents conditions on various parameters and mathematical constructions that appear in minisuperspace models. Examples from different approaches demonstrate their restrictive nature.

Original languageEnglish (US)
Article number026
JournalJournal of Cosmology and Astroparticle Physics
Issue number1
StatePublished - Jan 14 2019

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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