A dark energy model in Lyra manifold

JOURNAL OF GEOMETRY AND PHYSICS

卷:64

Article

Hova, Hoavo

关键词: Lyra's geometry;    Cosmology;    Dark energy;    Interaction;    Cosmological constant;   

DOI  :  10.1016/j.geomphys.2012.08.004

来源: Elsevier

【 摘 要 】

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 fields we show that the observed cosmic acceleration could be explained without considering an alien energy component with a negative pressure. (C) 2012 Elsevier B.V. All rights reserved.

【 授权许可】

Free