Some effects of the quantum field theory in the early Universe

TL;DR

This paper explores how quantum field theory effects like vacuum polarization and particle creation influenced the early Universe's evolution, including modifications to gravity and matter generation.

Contribution

It introduces generalized renormalization methods for Gauss-Bonnet coupling in N-dimensional spacetime and analyzes entropy and matter creation by dark matter gravity.

Findings

Vacuum polarization affects effective gravitational constant

Particle creation contributes to entropy and matter in the early Universe

Gauss-Bonnet coupling impacts quantum effects in cosmology

Abstract

Effects of the vacuum polarization leading to change of the effective gravitational constant and particle creation in the early Universe are discussed. Gauss-Bonnet type coupling to the curvature is considered. Renormalization methods are generalized for such coupling and the N-dimensional space-time. Calculations of creation of entropy and visible matter of the Universe by the gravity of dark matter are made.