73 citations · 507 across the 28 of their papers we have counts for
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Non-Gaussianities in generalized non-local -like inflation
Alexey S. Koshelev, K. Sravan Kumar, Alexei A. Starobinsky
In [1], a most general higher curvature non-local gravity action was derived that admits a particular -like inflationary solution predicting the spectral index of primordial s…
Parity asymmetry of primordial scalar and tensor power spectra
K. Sravan Kumar, João Marto
Although the cosmic microwave background (CMB) is largely understood to be homogeneous and isotropic, the CMB angular power spectra present anomalies that seem to break down parity…
Generalized non-local -like inflation
Alexey S. Koshelev, K. Sravan Kumar, Alexei A. Starobinsky
The inflation which is an extension of general relativity (GR) by quadratic scalar curvature introduces a quasi-de Sitter expansion of the early Universe governed by Ricci sc…