Quiescent cosmology and the final state of the universe

TL;DR

This paper extends quiescent cosmology by introducing new definitions for potential final states of the universe, aiming to complete the mathematical framework describing its evolution from initial to final conditions.

Contribution

It proposes novel definitions for anisotropic future states, complementing existing initial state models, to create a comprehensive formalism for quiescent cosmology.

Findings

Defined Anisotropic Future Endless Universe

Introduced Anisotropic Future Singularity

Proposed a unified framework for universe evolution

Abstract

It has long been a primary objective of cosmology to understand the apparent isotropy in our universe and to provide a mathematical formulation for its evolution. A school of thought for its explanation is quiescent cosmology, which already possesses a mathematical framework, namely the definition of an Isotropic Singularity, but only for the initial state of the universe. A complementary framework is necessary in order to also describe possible final states of the universe. Our new definitions of an Anisotropic Future Endless Universe and an Anisotropic Future Singularity, whose structure and properties differ significantly from those of the Isotropic Singularity, offer a promising realisation for this framework. The combination of the three definitions together may then provide the first complete formalisation of the quiescent cosmology concept.