Limiting energy density and gravity in Riemann-Cartan space-time

TL;DR

This paper explores how gravitational interactions behave in Riemann-Cartan space-time, revealing conditions where gravity can become repulsive at high energy densities and transition back to attraction at low densities.

Contribution

It introduces a gauge gravitational theory framework in Riemann-Cartan space-time to analyze gravitational behavior under extreme conditions, including energy density limits and phase transitions.

Findings

Gravitational repulsion occurs near limiting energy densities.

Transition from repulsion to attraction depends on energy density.

Analysis of cosmological regimes shows conversion to Friedman dynamics.

Abstract

The gravitational interaction is discussed within the framework of gauge gravitational theory in the Riemann-Cartan space-time. In the case of spatially homogeneous isotopic gravitating systems the gravitational repulsion at extreme conditions near limiting energy density and the transition from gravitational repulsion to attraction in dependence on energy density is studied. The conversion to Friedman regime and the transition to gravitational repulsion at very small energy densities is analyzed.