7 papers
Entanglement generation from gravitationally produced massless vector particles during inflation
Alessio Belfiglio, Mattia Dubbini, Orlando Luongo
We study the gravitational production of spectator massless vector particles in a single-field inflationary scenario, and the related entanglement generation across the Hubble hori…
Multipartite entanglement features of primordial non-gaussianities
Alessio Belfiglio, Roberto Franzosi, Orlando Luongo
We discuss some entanglement features associated with cubic non-Gaussian perturbations in single-field inflationary scenarios. We adopt standard momentum-space techniques to show h…
Geometric multipartite entanglement from gravitational particle production
Alessio Belfiglio, Roberto Franzosi, Orlando Luongo
We explore novel generation of genuine multipartite entanglement within gravitational particle production processes during inflationary stages. To this end, we focus on perturbativ…
Quantum entanglement in cosmology
Alessio Belfiglio, Orlando Luongo, Stefano Mancini
We discuss recent progress in the study of entanglement within cosmological frameworks, focusing on both momentum and position-space approaches and also reviewing the possibility t…
Gravitational dark matter production from fermionic spectator fields during inflation
Alessio Belfiglio, Orlando Luongo
We investigate the gravitational particle production from vacuum for a minimally coupled fermionic spectator field during a single-field inflationary phase. We observe that metric…
Entanglement entropy evolution during gravitational collapse
Alessio Belfiglio, Orlando Luongo, Stefano Mancini +1
We investigate the dynamics of the ground state entanglement entropy for a discretized scalar field propagating within the Oppenheimer-Snyder collapse metric. Starting from a well-…