Quantum Kinetic Equations and Cosmology

Abstract

We analyse quantum--kinetic effects in the early Universe. We show that quantum corrections to the Vlasov equation give rise to a dynamical variation of the gravitational constant. The value of the gravitational constant at the Grand Unification epoch is shown to differ from its present value to about $10^{-4}÷10^{-3}\%$.

10 pages

References in corpus (2)

• Einstein Equation with Quantum Corrections Reduced to Second Order
• Wigner function and quantum kinetic theory in curved space-time and external fields

Cited by in corpus (3)

• Quantum field corrections to the equation of state of freely streaming matter in the Friedman-Lemaitre-Robertson-Walker space-time
• Covariant Wigner Function Approach to the Boltzmann Equation for Mixing Fermions in Curved Spacetime
• Conformal Transformations of the Wigner Function and Solutions of the Quantum Corrected Vlasov Equation