Results 131 to 140 of about 8,643,173 (282)

Attractor Solutions in f(T) Cosmology

open access: yes, 2012
In this paper, we explore the cosmological implications of interacting dark energy model in a torsion based gravity namely $f(T)$. Assuming dark energy interacts with dark matter and radiation components, we examine the stability of this model by ...
A.G. Riess   +55 more
core   +1 more source

Irreversible thermodynamic description of interacting dark energy - dark matter cosmological models

open access: yes, 2013
We investigate the interaction between dark energy and dark matter in the framework of irreversible thermodynamics of open systems with matter creation/annihilation.
Harko, Tiberiu, Lobo, Francisco S. N.
core   +1 more source

Constraints on the Coupling between Dark Energy and Dark Matter from CMB data

open access: yes, 2016
We investigate a phenomenological non-gravitational coupling between dark energy and dark matter, where the interaction in the dark sector is parameterized as an energy transfer either from dark matter to dark energy or the opposite.
Fornengo, Nicolao   +2 more
core   +1 more source

Dark Energy

open access: yes, 2007
16 pages, Invited talk at the Seventh Hungarian Relativity Workshop, 10-15 August, 2003, Sarospatak ...
openaire   +2 more sources

DARK ENERGY IN PRACTICE [PDF]

open access: yesInternational Journal of Modern Physics A, 2010
In this paper we review a part of the approaches that have been considered to explain the extraordinary discovery of the late time acceleration of the Universe. We discuss the arguments that have led physicists and astronomers to accept dark energy as the current preferable candidate to explain the acceleration.
openaire   +4 more sources

Coupling dark energy to dark matter inhomogeneities

open access: yes, 2016
We propose that dark energy in the form of a scalar field could effectively couple to dark matter inhomogeneities. Through this coupling energy could be transferred to/from the scalar field, which could possibly enter an accelerated regime.
Marra, Valerio
core   +1 more source

Dark Matter and Dark Energy Induced by Condensates

open access: yesAdvances in High Energy Physics, 2016
It is shown that the vacuum condensate induced by many phenomena behaves as a perfect fluid which, under particular conditions, has zero or negative pressure.
Antonio Capolupo
doaj   +1 more source

The imprint of the interaction between dark sectors in galaxy clusters

open access: yes, 2010
Based on perturbation theory, we study the dynamics of how dark matter and dark energy in the collapsing system approach dynamical equilibrium while interacting.
A.G. Riess .   +20 more
core   +1 more source

Dark group: dark energy and dark matter [PDF]

open access: yesPhysics Letters B, 2004
We study the possibility that a dark group, a gauge group with particles interacting with the standard model particles only via gravity, is responsible for containing the dark energy and dark matter required by present day observations. We show that it is indeed possible and we determine the constrains for the dark group.
openaire   +3 more sources

Holographic Dark Information Energy

open access: yesEntropy, 2011
Landauer’s principle and the Holographic principle are used to derive the holographic information energy contribution to the Universe. Information energy density has increased with star formation until sufficient to start accelerating the expansion of ...
Michael Paul Gough
doaj   +1 more source

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