World Nematic Crystal Model of Gravity Explaining the Absence of Torsion

TL;DR

This paper proposes a novel crystal-based model of gravity where spacetime is a nematic crystal, explaining the absence of torsion and predicting curvature sources as world sheets with unique high-energy properties.

Contribution

It introduces a world crystal model of gravity with a quantum phase transition to a nematic phase, providing a new explanation for the lack of observable torsion in spacetime.

Findings

Spacetime modeled as a nematic crystal after a quantum phase transition.

Predicts curvature sources as world sheets with distinct high-energy characteristics.

Explains the absence of observable torsion in spacetime.

Abstract

We attribute the gravitational interaction between sources of curvature to the world being a crystal which has undergone a quantum phase transition to a nematic phase by a condensation of dislocations. The model explains why spacetime has no observable torsion and predicts the existence of curvature sources in the form of world sheets, albeit with different high-energy properties than those of string models.