output
19982025
most citedDynamics of dark energy

6.3k citations

Showing gr-qcShow all

5 papers · 1 filter

gr-qc2020★ 31 cited

Effects of Gravitational Chern-Simons during Axion-SU(2) Inflation

Leila Mirzagholi, Eiichiro Komatsu, Kaloian D. Lozanov +1

In this paper, we examine the viability of inflation models with a spectator axion field coupled to both gravitational and SU(2) gauge fields via Chern-Simons couplings. Requiring…

gr-qc2015★ 27 cited

Multi-disformal invariance of nonlinear primordial perturbations

Yuki Watanabe, Atsushi Naruko, Misao Sasaki

We study disformal transformations of the metric in the cosmological context. We first consider the disformal transformation generated by a scalar field and show that the curva…

gr-qc2007★ 298 cited

Solar system and equivalence principle constraints on f(R) gravity by chameleon approach

Salvatore Capozziello, Shinji Tsujikawa

We study constraints on f(R) dark energy models from solar system experiments combined with experiments on the violation of equivalence principle. When the mass of an equivalent sc…

gr-qc2006★ 708 cited

Conditions for the cosmological viability of f(R) dark energy models

Luca Amendola, Radouane Gannouji, David Polarski +1

We derive the conditions under which dark energy models whose Lagrangian densities f are written in terms of the Ricci scalar R are cosmologically viable. We show that the cosmolog…

gr-qc2006★ 153 cited

Avoidance of future singularities in loop quantum cosmology

M. Sami, Parampreet Singh, Shinji Tsujikawa

We consider the fate of future singularities in the effective dynamics of loop quantum cosmology. Non-perturbative quantum geometric effects which lead to modification of the…