Gauge Approach to Gravitation and Regular Big Bang Theory

TL;DR

This paper presents a gauge-theoretic framework for a regular Big Bang model that avoids singularities through gravitational repulsion, ensuring a bounce without quantum corrections, and explores properties of inflationary cosmologies.

Contribution

It introduces a gauge approach to gravitation that yields a non-singular, bouncing cosmological model without quantum gravity, expanding the understanding of regular inflationary universes.

Findings

Regular bouncing cosmological models are possible without quantum corrections.

Gravitational repulsion at extreme conditions prevents singularities.

The developed theory requires positive energy density and energy dominance conditions.

Abstract

Field theoretical scheme of regular Big Bang in 4-dimensional physical space-time, built in the framework of gauge approach to gravitation, is discussed. Regular bouncing character of homogeneous isotropic cosmological models is ensured by gravitational repulsion effect at extreme conditions without quantum gravitational corrections. The most general properties of regular inflationary cosmological models are examined. Developing theory is valid, if energy density of gravitating matter is positive and energy dominance condition is fulfilled.