Testing general relativity in cosmology
M Ishak - Living Reviews in Relativity, 2019 - Springer
We review recent developments and results in testing general relativity (GR) at cosmological
scales. The subject has witnessed rapid growth during the last two decades with the aim of …
scales. The subject has witnessed rapid growth during the last two decades with the aim of …
Unified cosmic history in modified gravity: from F (R) theory to Lorentz non-invariant models
S Nojiri, SD Odintsov - Physics Reports, 2011 - Elsevier
The classical generalization of general relativity is considered as the gravitational alternative
for a unified description of the early-time inflation with late-time cosmic acceleration. The …
for a unified description of the early-time inflation with late-time cosmic acceleration. The …
Mimetic gravity: a review of recent developments and applications to cosmology and astrophysics
L Sebastiani, S Vagnozzi… - Advances in High Energy …, 2017 - Wiley Online Library
Mimetic gravity is a Weyl‐symmetric extension of General Relativity, related to the latter by a
singular disformal transformation, wherein the appearance of a dust‐like perfect fluid can …
singular disformal transformation, wherein the appearance of a dust‐like perfect fluid can …
The black hole and cosmological solutions in IR modified Hořava gravity
MI Park - Journal of High Energy Physics, 2009 - iopscience.iop.org
Recently Hořava proposed a renormalizable gravity theory in four dimensions which
reduces to Einstein gravity with a non-vanishing cosmological constant in IR but with …
reduces to Einstein gravity with a non-vanishing cosmological constant in IR but with …
Hořava–Lifshitz dark energy
EN Saridakis - The European Physical Journal C, 2010 - Springer
We formulate Hořava–Lifshitz cosmology with an additional scalar field that leads to an
effective dark energy sector. We find that, due to the inherited features from the gravitational …
effective dark energy sector. We find that, due to the inherited features from the gravitational …
Perturbative instabilities in Hořava gravity
C Bogdanos, EN Saridakis - Classical and Quantum Gravity, 2010 - iopscience.iop.org
We investigate the scalar and tensor perturbations in Hořava gravity, with and without
detailed balance, around a flat background. Once both types of perturbations are taken into …
detailed balance, around a flat background. Once both types of perturbations are taken into …
New agegraphic dark energy in Hořava-Lifshitz cosmology
M Jamil, EN Saridakis - Journal of Cosmology and Astroparticle …, 2010 - iopscience.iop.org
We investigate the new agegraphic dark energy scenario in a universe governed by Hořava-
Lifshitz gravity. We consider both the detailed and non-detailed balanced version of the …
Lifshitz gravity. We consider both the detailed and non-detailed balanced version of the …
Hawking radiation and black hole spectroscopy in Hořava–Lifshitz gravity
BR Majhi - Physics Letters B, 2010 - Elsevier
Hawking radiation from the black hole in Hořava–Lifshitz gravity is discussed by a
reformulation of the tunneling method given in Banerjee and Majhi (2009)[17]. Using a …
reformulation of the tunneling method given in Banerjee and Majhi (2009)[17]. Using a …
The generalized second law of thermodynamics in Hořava-Lifshitz cosmology
We investigate the validity of the generalized second law of thermodynamics in a universe
governed by Hořava-Lifshitz gravity. Under the equilibrium assumption, that is in the late …
governed by Hořava-Lifshitz gravity. Under the equilibrium assumption, that is in the late …
Compatibility of big bang nucleosynthesis in some modified gravities
This paper is devoted to investigate the implications of Einstein-Aether and modified Hořava–
Lifshitz theories of gravity to the formation of light elements in the early universe named as …
Lifshitz theories of gravity to the formation of light elements in the early universe named as …