Quantum torsion with non-zero standard deviation: non-perturbative approach for cosmology

TL;DR

This paper explores how non-perturbative quantum torsion affects the evolution of different universe models, revealing that quantum torsion can alter cosmological dynamics and mimic effects of curvature.

Contribution

It introduces a non-perturbative approach to quantum torsion in cosmology using a vector field approximation, highlighting its impact on universe evolution.

Findings

Quantum torsion influences the evolution of cosmological models.

Presence of quantum torsion can mimic different curvature effects.

Non-perturbative approach provides new insights into quantum gravity effects in cosmology.

Abstract

Cosmology with non-perturbative quantum corrections resulting from torsion is considered. It is shown that the evolution of closed, open and flat Universes is changed because of the presence of a non-zero dispersion of quantum torsion. The evolution of a Universe with quantum torsion and with one type of average curvature can be similar to the evolution of a Universe without quantum torsion and with another type of average curvature. For the description of the non-perturbative quantum torsion, a vector field approximation is applied.