3 papers
astro-ph.CO2026
When the Environment Speaks: Quantum Signatures in Non-Attractor Inflation
Mattia Cielo, Simone Scarlatella, Gianpiero Mangano +1
We study the open quantum dynamics of the adiabatic curvature perturbation interacting with a massive entropic scalar environment during an inflationary scenario featuring a transi…
gr-qc2025
Quantum Recoherence in Presence of Excited States in the Early Universe
Mattia Cielo, Simone Scarlatella, Gianpiero Mangano +2
We investigate the quantum-to-classical transition of primordial perturbations within a two-field inflationary framework where an adiabatic mode interacts with an entropic environm…
astro-ph.CO2024
Steepest Growth in the Primordial Power Spectrum from Excited States at a Sudden Transition
Mattia Cielo, Gianpiero Mangano, Ofelia Pisanti +1
Sudden phase transitions during inflation can give rise to strongly enhanced primordial density perturbations on scales much smaller than those directly probed by cosmic microwave…