Year: 2015
Type: article
Abstract: We study quantum corrections to the classical Bianchi I and Bianchi IX universes. The modified dynamics is well motivated from the asymptotic safety program where the short-distance behavior of gravity is governed by a nontrivial renormalization group fixed point. The correction terms induce a phase transition in the dynamics of the model, changing the classical, chaotic Kasner oscillations into a uniform approach to a point singularity. The resulting implications for the microscopic structure of spacetime are discussed.
Authors: Giulio D’Odorico, Frank Saueressig
Institution: Radboud University Nijmegen
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2230194734