234 citations · 2.9k across the 57 of their papers we have counts for
3 papers · 2 filters
Occurrence of exact inflation in non-local UV-complete gravity
Alexey S. Koshelev, Leonardo Modesto, Leslaw Rachwal +1
The , shortly named "" ("Starobinsky") inflationary model, represents a fully consistent example of a one-parameter inflationary scenario. This model has a "graceful ex…
Effective models of inflation from a non-local framework
Alexey S. Koshelev, K. Sravan Kumar, Paulo Vargas Moniz
The dilaton is a possible inflaton candidate following recent CMB data allowing a non-minimal coupling to the Ricci curvature scalar in the early Universe. In this paper, we introd…
Gravitational theories with stable (anti-)de Sitter backgrounds
Tirthabir Biswas, Alexey S. Koshelev, Anupam Mazumdar
In this article we will construct the most general torsion-free parity-invariant covariant theory of gravity that is free from ghost-like and tachyonic nstabilities around constant…