3 papers
math-ph2026
The Semiclassical Einstein-Klein-Gordon System: Asymptotic Analysis of Minkowski Spacetime
Stefano Galanda, Paolo Meda, Simone Murro +2
We establish the linear instability of the semiclassical Einstein-Klein-Gordon system linearised about the Minkowski vacuum spacetime. The proof relies on formulating a forcing pro…
astro-ph.CO2025
One-loop correction to primordial tensor modes during radiation era
Markus B. Fröb, Dražen Glavan, Paolo Meda +1
The ability to infer properties of primordial inflation relies on the conservation of the superhorizon perturbations between their exit during inflation, and their re-entry during…
gr-qc2025
Measurements in stochastic gravity and thermal variance
Markus B. Fröb, Dražen Glavan, Paolo Meda
We analyze the thermal fluctuations of a free, conformally invariant, Maxwell quantum field (photon) interacting with a cosmological background spacetime, in the framework of quant…