3 papers
astro-ph.CO2025
The first data-driven bounds on the quantum decoherence of inflationary gravitational waves
Jessie de Kruijf, Giacomo Galloni, Nicola Bartolo
The (large-scale) structures we observe in the Universe are classical, but within the inflationary scenario they do originate from quantum fluctuations. This leads to the question:…
astro-ph.CO2025
Quantum signatures and decoherence during inflation from deep subhorizon perturbations
Francescopaolo Lopez, Nicola Bartolo
In order to shed light on the quantum-to-classical transition of the primordial perturbations in single field inflation, we investigate the decoherence and associated quantum corre…
astro-ph.CO2025
Observed galaxy number counts on the lightcone up to third order
Lorenzo Gervani, Daniele Bertacca, Nicola Bartolo
In this work we provide a detailed derivation of the observed galaxy number over-density obtained by computing cosmological perturbations up to third order in redshift space and on…