All-optical implementation of collision-based evolutions of open quantum systems

All-optical implementation of collision-based evolutions of open quantum systems

We present a new optical scheme enabling the implementation of highly stable and configurable non-Markovian dynamics. Here one photon qubit can circulate in a multipass bulk geometry consisting of two concatenated Sagnac interferometers to simulate the so called collisional model, where the system i...

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Hauptverfasser: Cuevas, Álvaro, Geraldi, Andrea, Liorni, Carlo, Bonavena, Luís Diego, De Pasquale, Antonella, Sciarrino, Fabio, Giovannetti, Vittorio, Mataloni, Paolo
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creator Cuevas, Álvaro
Geraldi, Andrea
Liorni, Carlo
Bonavena, Luís Diego
De Pasquale, Antonella
Sciarrino, Fabio
Giovannetti, Vittorio
Mataloni, Paolo
description We present a new optical scheme enabling the implementation of highly stable and configurable non-Markovian dynamics. Here one photon qubit can circulate in a multipass bulk geometry consisting of two concatenated Sagnac interferometers to simulate the so called collisional model, where the system interacts at discrete times with a vacuum environment. We show the optical features of our apparatus and three different implementations of it, replicating a pure Markovian scenario and two non-Markovian ones, where we quantify the information backflow by tracking the evolution of the initial entanglement between the system photon and an ancillary one.
doi_str_mv 10.48550/arxiv.1809.01922
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title All-optical implementation of collision-based evolutions of open quantum systems
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