Singularity from star collapse, torsion and asymptotic safety of gravity

TL;DR

This paper explores how torsion in asymptotically safe gravity, influenced by matter's spin, could prevent singularity formation during star collapse, challenging traditional views based on the Hawking-Penrose theorem.

Contribution

It introduces the idea that matter's spin and torsion can evade singularities in gravitational collapse within the framework of asymptotic safety of gravity.

Findings

Torsion can potentially prevent singularity formation.

Spin effects of matter influence gravitational collapse.

Evasion of singularity depends on torsion dynamics.

Abstract

A star of mass greater than a critical mass is believed to undergo gravitational collapse to form a singularity, owing to Hawking-Penrose singularity theorem which is based on the Raychaudhuri equation in the absence of torsion. We argue that the spin-aspect of matter can lead to the evasion of singularity, caused by its mass-aspect, via torsion in asymptotically safe gravity.