Removing the Big Bang Singularity: The role of the generalized uncertainty principle in quantum gravity

TL;DR

This paper explores how the generalized uncertainty principle can eliminate the big bang singularity by analyzing a quantum gravity model that results in finite entropy at infinite temperature and allows negative temperatures and pressures.

Contribution

It introduces a model using the generalized uncertainty principle to remove the big bang singularity and examines its thermodynamic implications.

Findings

Entropy remains finite at infinite temperature.

Negative temperatures and pressures are possible.

The model successfully removes the big bang singularity.

Abstract

The possibility of avoiding the big bang singularity by means of a generalized uncertainty principle is investigated. In relation with this matter, the statistical mechanics of a free-particle system obeying the generalized uncertainty principle is studied and it is shown that the entropy of the system has a finite value in the infinite temperature limit. It is then argued that negative temperatures and negative pressures are possible in this system. Finally, it is shown that this model can remove the big bang singularity.