A Dark Energy Model in Lyra Manifold

Details A Dark Energy Model in Lyra Manifold A Dark Energy Model in Lyra Manifold

2012-04-01

arxiv.org/abs/1204.0774v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, 2 figures, LaTeX file

Scientific paper

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.

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