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Article Dans Une Revue Physical Review D Année : 2019

Bianchi I effective dynamics in Quantum Reduced Loop Gravity

Emanuele Alesci
  • Fonction : Auteur
Gioele Botta
  • Fonction : Auteur
Giovanni Luzi
  • Fonction : Auteur

Résumé

The effective quantum dynamics of Bianchi I spacetime is addressed within the statistical regularization scheme in quantum reduced loop gravity. The case of a minimally coupled massless scalar field is studied and compared with the effective μ¯–loop quantum cosmology. The dynamics provided by the two approaches match in the semiclassical limit but differ significantly after the bounces. Analytical and numerical inspections show that energy density, expansion scalar and shear are bounded also in quantum reduced loop gravity and the classical singularity is resolved for generic initial conditions in all spatial directions.

Dates et versions

hal-02008880 , version 1 (06-02-2019)

Identifiants

Citer

Emanuele Alesci, Gioele Botta, Giovanni Luzi, Gabriele V. Stagno. Bianchi I effective dynamics in Quantum Reduced Loop Gravity. Physical Review D, 2019, 99 (10), pp.106009. ⟨10.1103/PhysRevD.99.106009⟩. ⟨hal-02008880⟩
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