3 papers
gr-qc2025
Quasi-dust ekpyrotic scenario in Loop Quantum Cosmology
Emmanuel Frion, Mateo Pascual, Francesca Vidotto
In the framework of Loop Quantum Cosmology, we study a cosmological bouncing model with two fields that reproduce the desired features of the primordial power spectra. The model co…
astro-ph.CO2025
On the Hamilton-Jacobi approach to inflation beyond slow roll
Danilo Artigas, Emmanuel Frion, Tays Miranda +2
The Hamilton-Jacobi approach is a powerful tool to describe super-Hubble dynamics during cosmological inflation in a non-linear way. A key assumption of this framework is to neglec…
gr-qc2024
Primordial magnetogenesis in a bouncing model with dark energy
Marcus V. Bomfim, Emmanuel Frion, Nelson Pinto-Neto +1
We investigate primordial magnetogenesis within a quantum bouncing model driven by a scalar field, focusing on various non-minimal couplings between the electromagnetic field and t…