A Dark Energy Model in Lyra Manifold

We consider, in normal-gauge Lyra's geometry, evolution of a homogeneous isotropic universe in a gravitational model involving only the standard matter in interaction with a displacement vector field \(\phi_{\mu}\). Considering both constant and time-dependent displacement vector field we show...

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Bibliographic Details
Published in:arXiv.org 2012-04
Main Author: Hova, Hoavo
Format: Article
Language:English
Subjects:
Acceleration
Dark energy
Fields (mathematics)
Time dependence
Universe
Online Access:Get full text
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Summary:We consider, in normal-gauge Lyra's geometry, evolution of a homogeneous isotropic universe in a gravitational model involving only the standard matter in interaction with a displacement vector field \(\phi_{\mu}\). Considering both constant and time-dependent displacement vector field we show that the observed cosmic acceleration could be explained without considering an alien energy component with a negative pressure.
ISSN:2331-8422
DOI:10.48550/arxiv.1204.0774