Deformed Phase Space Kaluza-Klein cosmology and late time acceleration

TL;DR

This paper investigates how phase space deformations in Kaluza-Klein cosmology can lead to late-time acceleration, suggesting an effective cosmological constant arising from modifications in the symplectic structure.

Contribution

It introduces a novel approach by incorporating phase space deformations into Kaluza-Klein cosmology and demonstrates their impact on cosmic acceleration.

Findings

Deformed model exhibits an accelerating scale factor.

Effective cosmological constant emerges from phase space deformation.

Phase space deformation influences late-time cosmic dynamics.

Abstract

The effects of phase space deformations on Kalutza-Klein cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables. In the deformed model, we find an accelerating scale factor and therefore infer the existence of an effective cosmological constant from the phase space deformation parameter $\beta$.