Acceleration in Weyl integrable spacetime

Abstract

We study homogeneous and isotropic cosmologies in a Weyl spacetime. It is shown that in Weyl integrable spacetime, the corresponding scalar field may act as a phantom field. In this circumstance the Weyl field gives rise to a late accelerated expansion of the Universe for all initial conditions and for a wide range of the parameters.

9 pages, 1 figure, to be published in Int. J. Mod. Phys. D

References in corpus (12)

• Dynamics of dark energy
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Models for Little Rip Dark Energy
• General Relativity and Weyl Geometry
• The conformal transformation's controversy: what are we missing?
• f(R) cosmology with torsion
• Geometric realizations, curvature decompositions, and Weyl manifolds
• Inducing the cosmological constant from five-dimensional Weyl space
• Wesson's IMT with a Weylian bulk
• On the embedding of spacetime in five-dimensional Weyl spaces
• Weyl Geometries and Timelike Geodesics
• Bouncing Cosmologies

Cited by in corpus (10)

• The Weyl-Cartan Gauss-Bonnet gravity
• A note on the problem of proper time in Weyl space-time
• Cosmological models in Weyl geometrical scalar-tensor theory
• Gauge invariant fluctuations of the metric during inflation from new scalar-tensor Weyl-Integrable gravity model
• (2+1)-Dimensional Gravity in Weyl Integrable Spacetime
• On the Cauchy Problem for Weyl-Geometric Scalar-Tensor Theories of Gravity
• New exact and analytic solutions in Weyl Integrable cosmology from Noether symmetry analysis
• Weyl frames and canonical transformations in geometrical scalar-tensor theories of gravity
• Painlevé analysis for the cosmological field equations in Weyl Integrable Spacetime
• Geometric formulation of $k$-essence and late-time acceleration