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Dark energy as a kinematic effect
(2016-03-01)
We present a generalization of teleparallel gravity that is consistent with local spacetime kinematics regulated by the de Sitter group SO(1, 4). The mathematical structure of teleparallel gravity is shown to be given by ...
A novel teleparallel dark energy model
(2016-02-01)
Although equivalent to general relativity, teleparallel gravity (TG) is conceptually speaking a completely different theory. In this theory, the gravitational field is described by torsion, not by curvature. By working in ...
Holographic field theory models of dark energy in interaction with dark matter
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
We discuss two Lagrangian interacting dark energy models in the context of the holographic principle. The potentials of the interacting fields are constructed. The models are compared with CMB distance information, baryonic ...
Field theory model for dark matter and dark energy in interaction
(AMER PHYSICAL SOC, 2009)
We propose a field theory model for dark energy and dark matter in interaction. Comparing the classical solutions of the field equations with the observations of the CMB shift parameter, baryonic acoustic oscillations, ...
Scaling attractors in interacting teleparallel dark energy
(2013-07-01)
It has been proposed recently the existence of a non-minimal coupling between a canonical scalar field (quintessence) and gravity in the framework of teleparallel gravity, motivated by similar constructions in the context ...
Scaling attractors in interacting teleparallel dark energy
(2013-07-01)
It has been proposed recently the existence of a non-minimal coupling between a canonical scalar field (quintessence) and gravity in the framework of teleparallel gravity, motivated by similar constructions in the context ...
Effects of shear and rotation on the spherical collapse model for clustering dark energy
(Oxford University Press, 2014-11-21)
The signature of dark energy perturbations in galaxy cluster surveys
(IOP PUBLISHING LTD, 2009)
Models of dynamical dark energy unavoidably possess fluctuations in the energy density and pressure of that new component. In this paper we estimate the impact of dark energy fluctuations on the number of galaxy clusters ...
The signature of dark energy perturbations in galaxy cluster surveys
(Iop Publishing Ltd, 2009-07-01)
Models of dynamical dark energy unavoidably possess fluctuations in the energy density and pressure of that new component. In this paper we estimate the impact of dark energy fluctuations on the number of galaxy clusters ...