62 citations · 79 across the 6 of their papers we have counts for
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astro-ph.CO2026
A simple mechanism for the enhancement of the inflationary power spectrum
I. Dalianis, A. Katsis, N. Tetradis
The background evolution in two-field inflation can feature two distinct stages, corresponding to the evolution along two successive field directions. When the second stage occurs…
astro-ph.CO2025
The sinusoidal valley: a recipe for high peaks in the scalar and induced tensor spectra
Aris Katsis
Adding a sine-type interaction to inflationary models with two fields can evoke a classical trajectory with many turns in field space. Under conditions we discuss, the enhancement…
astro-ph.CO2019★ 6 cited
The dark matter bispectrum from effective viscosity and one-particle irreducible vertices
Stefan Floerchinger, Mathias Garny, Aris Katsis +2
Dark matter evolution during the process of cosmological structure formation can be described in terms of a one-particle irreducible effective action at a characteristic scale $k_m…