2.7k citations · 6.2k across the 88 of their papers we have counts for
88 papers
Adiabatic Perturbations in GW170817-Compatible Einstein-Gauss-Bonnet Inflation
S. D. Odintsov, V. K. Oikonomou
We study the adiabaticity of the cosmological perturbations in the context of inflationary Einstein-Gauss-Bonnet theories. We focus on viable inflationary Einstein-Gauss-Bonnet the…
Dark Energy in Ghost-free non-local Gravity
S. D. Odintsov, V. K. Oikonomou, G. S. Sharov
Ghost-free non-local gravity is investigated with regards to its late-time dynamics. Viable solutions in this model are confronted with the observational data including the Pantheo…
ACT Data and Positive Running of the Spectral Index for Scalar Theory and Modified Gravity
S. D. Odintsov, V. K. Oikonomou
In this work we address the possibility of having a positive running of the spectral index in inflationary theories. The recent ACT data indicate mildly that the running of the spe…
String-inspired Gauss-Bonnet Gravity Inflation and ACT
S. D. Odintsov, V. K. Oikonomou, Pyotr Tsyba +2
In this article we present a systematic observational verification of the ghost-free string-inspired model, where the Gauss-Bonnet invariant is non-minimally cou…
Viable f(R) Scenarios Unifying Inflation with Realistic Dynamical Dark Energy
S. D. Odintsov, V. K. Oikonomou, G. S. Sharov
Two gravity models are tested on the basis of their viability during all stages of cosmological evolution. It is shown that these models can describe both the early-time inf…
A Remedy of the Trans-Planckian Censorship Problem with Smooth Slow-roll to Power-law Inflation Transitions in Scalar Field Theory
S. D. Odintsov, V. K. Oikonomou
It is known that if the standard slow-roll inflation is followed by a power-law inflationary regime, then the trans-Planckian modes may be safely be contained in the Hubble horizon…