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gr-qc2025
Observables are glocal
Emil Broukal, Andrea Di Biagio, Eugenio Bianchi +1
We show that the problem of observables can be fully resolved for background independent theories defined on graphs, through the explicit construction of complete observables. The…
gr-qc2025
Adiabatic vacua from linear complex structures
Eugenio Bianchi, Yusuf Ghelem, Lucas Hackl
Adiabatic vacua play a central role in quantum fields in cosmological spacetimes, where they serve as distinguished initial conditions and as reference states for the renormalizati…