Regularizing cosmological singularities by varying physical constants

TL;DR

This paper explores how varying physical constants over time can potentially resolve cosmological singularities, offering a new approach to address fundamental issues in cosmology.

Contribution

It demonstrates that cosmological singularities can be regularized through time-evolving physical constants, expanding the applications of varying constant theories.

Findings

Singularities can be smoothed out with appropriate constant evolution

Varying constants provide alternative solutions to cosmological problems

Potential to unify singularity resolution with other cosmological issues

Abstract

Varying physical constant cosmologies were claimed to solve standard cosmological problems such as the horizon, the flatness and the $\Lambda$-problem. In this paper, we suggest yet another possible application of these theories: solving the singularity problem. By specifying some examples we show that various cosmological singularities may be regularized provided the physical constants evolve in time in an appropriate way.