12 papers
ACT DR6+Planck impact on inflation with non-zero vacuum expectation value and the post-inflationary behavior
F. B. M. dos Santos, J. G. Rodrigues, G. Rodrigues +2
The impact of the most recent cosmic microwave background (CMB) data from the Atacama Cosmology Telescope (ACT) is studied for a model of cosmic inflation which predicts a non-zero…
Cosmological Constraints on Neutrino Masses in Quintessential Inflation
Jamerson Rodrigues, Gabriel Rodrigues, Felipe B. M. dos Santos +2
Quintessential inflation provides a unified description of the early and late accelerated phases of the Universe, linking the inflationary epoch to the present-day dark energy-domi…
Forecasting constraints on quintessential inflation from future generation of galaxy and CMB surveys
G. Rodrigues, F. B. M. dos Santos, S. Santos da Costa +5
We investigate the constraining power of future CMB and galaxy surveys on models of quintessential inflation realized within the framework of -attractors. We analyze how these…
Stage IV CMB forecasts for warm inflation
F. B. M. dos Santos, G. Rodrigues, R. de Souza +1
We report forecast constraints on warm inflation in the light of future cosmic microwave background (CMB) surveys, with data expected to be available in the coming decade. These ob…
Dark energy and cosmic acceleration
Rodrigo von Marttens, Jailson Alcaniz
The discovery that we live in an accelerating universe changed drastically the paradigm of physics and introduced the concept of \textit{dark energy}. In this work, we present a br…
Dark Matter Freeze-In during Warm Inflation and the Seesaw Mechanism
Rayff de Souza, Jamerson G. Rodrigues, Clarissa Siqueira +2
A compelling way to address the inflationary period is via the warm inflation scenario, where the interaction of the inflaton field with other degrees of freedom affects its dynami…