4 papers
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…
Superfluid Dark Matter
Lasha Berezhiani, Giordano Cintia, Valerio De Luca +1
The superfluid dark matter model offers an elegant solution to reconcile discrepancies between the predictions of the cold dark matter paradigm and observations on galactic scales.…
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…