A (not so?) novel explanation for the very special initial state of the universe

TL;DR

This paper proposes a novel approach combining objective collapse models with the Weyl curvature hypothesis to explain the universe's initial state, linking quantum foundations with cosmological initial conditions.

Contribution

It introduces a curvature-dependent collapse rate in objective collapse models, providing a dynamical basis for Penrose's Weyl curvature hypothesis.

Findings

Curvature-dependent collapse rates can explain initial universe conditions.

The approach links quantum collapse models with cosmological initial state explanations.

Offers a new perspective on the universe's low-entropy beginning.

Abstract

We put forward a proposal that combines objective collapse models, developed in connection with quantum-foundational questions, with the so-called Weyl curvature hypothesis, introduced by Roger Penrose as an attempt to account for the very special initial state of the universe. In particular, we explain how a curvature dependence of the collapse rate in such models, an idea already shown to help in the context of black holes and information loss, could also offer a dynamical justification for Penrose's conjecture.