One-Loop Quantum Gravity Repulsion in the Early Universe

Bogusław Broda
Phys. Rev. Lett. 106, 101303 – Published 11 March 2011

Abstract

Perturbative quantum gravity formalism is applied to compute the lowest order corrections to the classical spatially flat cosmological Friedmann-Lemaître-Robertson-Walker solution (for the radiation). The presented approach is analogous to the approach applied to compute quantum corrections to the Coulomb potential in electrodynamics, or rather to the approach applied to compute quantum corrections to the Schwarzschild solution in gravity. In the framework of the standard perturbative quantum gravity, it is shown that the corrections to the classical deceleration, coming from the one-loop graviton vacuum polarization (self-energy), have (UV cutoff free) opposite to the classical repulsive properties which are not negligible in the very early Universe. The repulsive “quantum forces” resemble those known from loop quantum cosmology.

  • Received 6 December 2010

DOI:https://doi.org/10.1103/PhysRevLett.106.101303

© 2011 American Physical Society

Authors & Affiliations

Bogusław Broda*

  • Department of Theoretical Physics, University of Łódź, Pomorska 149/153, PL–92-002 Łódź, Poland

  • *bobroda@uni.lodz.pl http://merlin.fic.uni.lodz.pl/kft/people/BBroda

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 106, Iss. 10 — 11 March 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×