Cosmic Acceleration from Varying Masses in Five Dimensions

TL;DR

This paper explores cosmological solutions within Wesson's Space-Time-Matter theory, linking mass variation at large scales to universe expansion, offering new insights into extradi- mensional gravity models.

Contribution

It introduces a novel relation between mass variation and cosmic expansion in five-dimensional gravity, expanding the understanding of Space-Time-Matter theory.

Findings

Mass variation correlates with universe expansion velocity.

New features emerge in Space-Time-Matter theory due to mass variation.

Cosmological solutions demonstrate the viability of extradi- mensional models.

Abstract

Much effort has been made in trying to solve or at least evade the inconsistencies that emerge from general relativity as the framework for a cosmological model. The extradi- mensional models rise as superb possibilities on this regard. In this work I present cosmo- logical solutions for Wesson's Space-Time-Matter theory of gravity. A relation between mass variation at cosmological scales and the expansion velocity of the universe is ob- tained. Such a relation yields novel features on Space-Time-Matter theory of gravity, which are carefully discussed.