title: Linear optics simulation of quantum non-Markovian dynamics.
abstract: The simulation of open quantum dynamics has recently allowed the direct investigation of the features of system-environment interaction and of their consequences on the evolution of a quantum system. Such interaction threatens the quantum properties of the system, spoiling them and causing the phenomenon of decoherence. Sometimes however a coherent exchange of information takes place between system and environment, memory effects arise and the dynamics of the system becomes non-Markovian. Here we report the experimental realisation of a non-Markovian process where system and environment are coupled through a simulated transverse Ising model. By engineering the evolution in a photonic quantum simulator, we demonstrate the role played by system-environment correlations in the emergence of memory effects.
authors.affiliation: Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Chiuri
authors.forename: Chiara
authors.initials: C
authors.lastname: Greganti
authors.forename: Laura
authors.initials: L
authors.lastname: Mazzola
authors.forename: Mauro
authors.initials: M
authors.lastname: Paternostro
authors.forename: Paolo
authors.initials: P
authors.lastname: Mataloni