13 citations · 37 across the 10 of their papers we have counts for
6 papers · 1 filter
Gravitational Backreaction in de Sitter: A Canonical ADM Approach
Giordano Cintia
We develop a canonical ADM framework for gravitational backreaction during inflation. Our approach extends the formalism used to compute cosmological correlators by applying it to…
Probabilistic Causality from Graviton Fluctuations
Giordano Cintia, Federico Piazza, Samuel Ramos
We compute the commutator of a scalar field minimally coupled to gravity at leading order in . The commutator is operator-valued, with terms involving derivatives of Dirac del…
Coherence and Quantum Stability of Relativistic Superfluid States
Lasha Berezhiani, Giordano Cintia, Giacomo Contri
We analyze the quantum dynamics of a relativistic homogeneous superfluid in a complex scalar field theory. Unlike zero-charge condensates, which undergo quantum evaporation due to…
Modified Microcausality from Perturbation Theory
Giordano Cintia, Federico Piazza, Samuel Ramos
Relativistic microcausality is the statement that local field operators commute outside the light-cone. This condition is known to break down in low-energy effective theories, such…
Perturbative Construction of Coherent States
Lasha Berezhiani, Giordano Cintia, Michael Zantedeschi
The perturbative consistency of coherent states within interacting quantum field theory requires them to be altered beyond the simple non-squeezed form. Building on this point, we…
Background Field Method and Initial-Time Singularity for Coherent States
Lasha Berezhiani, Giordano Cintia, Michael Zantedeschi
The background field method is adopted for studying the dynamics of coherent states within an interacting scalar field theory. Focusing on a coherent state that corresponds to the…