63 citations · 69 across the 4 of their papers we have counts for
4 papers
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…
Phantom cosmology with arbitrary potential: New accelerating scaling attractors
Sudip Halder, Supriya Pan, Paulo M. Sá +1
In this article, we investigate the existence of accelerating scaling solutions in coupled phantom cosmology without assuming any specific potential for the phantom scalar field. T…
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…
The Black Holes of a General Two-Dimensional Dilaton Gravity Theory
José P. S. Lemos, Paulo M. Sá
A general dilaton gravity theory in 1+1 spacetime dimensions with a cosmological constant and a new dimensionless parameter , contains as special cases the constant curvatur…