# Cosmic acceleration from topological considerations II: Fiber bundles

## TL;DR

This paper explores a topological model where the universe's acceleration results from its fiber bundle topology, suggesting that cosmic acceleration could be due to the universe's global topological structure rather than exotic matter.

## Contribution

It introduces a fiber bundle topological model for cosmic acceleration, providing an alternative explanation based on universe topology rather than dark energy.

## Key findings

- Space-time acceleration depends on the fiber group.
- Acceleration can be oscillatory, matching observations.
- Topology may explain cosmic acceleration without exotic matter.

## Abstract

In this work we study an alternative topological model for explaining the observed acceleration of space-time, we answer the question of whether this acceleration could be a consequence of the topology of the universe. For doing that, we propose that the whole universe is composed of a four dimensional base space, which represents space-time, endowed with a fiber forming a principal fiber bundle. We analyze this hypothesis for a homogeneous and isotropic four dimensional space-time and show that the effect of the fiber onto the base space is that the space-time accelerates depending on the group of the fiber, even in an oscillatory way, resembling the behavior of the universe according to recent observations. We conclude that there is the possibility of the accelerating behavior of the universe being due to its whole topology instead of an exotic kind of matter.