A. Lykkas

Extended interactions in the Palatini-R 2 inflation

K. Tamvakis, A. Lykkas, 2021, Journal of Cosmology and Astroparticle Physics.

Palatini inflation in models with an R2 term

I. Antoniadis, K. Tamvakis, A. Lykkas, 2018, Journal of Cosmology and Astroparticle Physics.

Equivalence of inflationary models between the metric and Palatini formulation of scalar-tensor theories

A. Racioppi, A. Kozak, A. Lykkas, 2020, 2005.14571.

Constant-roll in the Palatini-R2 models

I. Antoniadis, K. Tamvakis, A. Lykkas, 2020, Journal of Cosmology and Astroparticle Physics.

Rescuing quartic and natural inflation in the Palatini formalism

I. Antoniadis, K. Tamvakis, A. Lykkas, 2018, Journal of Cosmology and Astroparticle Physics.

Single-field inflation in models with an $R^2$ term

I. Antoniadis, K. Tamvakis, A. Lykkas, 2019, Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019).

Palatini-Higgs inflation with nonminimal derivative coupling

A. Lykkas, A. Karam, I. Gialamas, 2020, Physical Review D.

Frame-invariant approach to higher-dimensional scalar-tensor gravity

K. Tamvakis, A. Lykkas, A. Karam, 2018, Physical Review D.