3 papers
quant-ph2026
Quantum Inequalities from the Second Law
Andrea Palessandro
Quantum field theory allows local violations of the classical energy conditions, such as regions of negative energy density. The Ford-Roman quantum inequalities quantify how negati…
gr-qc2025
Time as a Cosmological Phenomenon
Andrea Palessandro
We show that the arrow of time is intimately related to the geometry and topology of the whole universe, and is therefore best understood as a cosmological phenomenon.
gr-qc2025
Infeasibility of Graviton Detection as Cosmic Censorship
Andrea Palessandro
We construct an explicit model of inhomogeneous gravitational collapse leading to a naked singularity in which gravitational absorption is both efficient and observable. We propose…