11 citations · 19 across the 7 of their papers we have counts for
5 papers · 1 filter
Continuous Bogoliubov formalism for gravitational-wave generation in a unified dark sector warm inflation
Tommaso Mengoni
In this work, we review gravitational-wave generation in a two-scalar-field cosmological model. The framework relies on a two-field scenario in which warm inflation is unified with…
Gravitational waves from warm inflation in the weak dissipative regime
Orlando Luongo, Tommaso Mengoni, Paulo M. Sá
Previous work on the gravitational-wave background generated in a two-scalar-field cosmological model, in which warm inflation and the dark sector are unified within a single frame…
Gravitational waves from two scalar fields unifying the dark sector with inflation
Orlando Luongo, Tommaso Mengoni, Paulo M. Sá
We investigate the gravitational-wave background predicted by a two-scalar-field cosmological model that aims to unify primordial inflation with the dark sector, namely late-time d…
Comparing geometric and gravitational particle production in Jordan and Einstein frames
Alessio Belfiglio, Orlando Luongo, Tommaso Mengoni
We explore cosmological particle production associated with inflationary fluctuations by comparing gravitational and geometric mechanisms, within a non-minimal Yukawa-like coupling…
Quasi-quintessence inflation with non-minimal coupling to curvature in the Jordan and Einstein frames
Orlando Luongo, Tommaso Mengoni
We here explore a specific class of scalar field, dubbed quasi-quintessence which exhibits characteristics akin to ordinary matter. Specifically, we investigate under which conditi…