Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat
Date Lundi 18 Octobre 2021
Heure 13:30
Institut LPENS
Salle Salle Djebar - 29 rue d'Ulm
Nom de l'orateur Filippone
Prenom de l'orateur Michele
Addresse email de l'orateur
Institution de l'orateur CEA Grenoble
Titre Quantum simulation with solid-state quantum technologies : Observing many-body localization in a superconducting qubit array
Résumé In this seminar, I will discuss how quantum technologies are now able to unveil and investigate novel fundamental phenomena by simulating interacting quantum systems. In particular, we will ask : Is it possible to harness and preserve the quantum coherent properties of many-body systems? This project seems doomed to fail, as interactions in many-body systems generally lead to ergodicity, namely the inevitable loss of quantum coherence and memory about initial conditions. Nevertheless, the recent discovery of many-body localization (MBL) – a generalization of Anderson localization in the presence of interactions – has shown the possibility to circumvent ergodicity. I will illustrate an experiment in which an array of superconducting qubits probes the exotic dynamics of interacting and disordered bosons (1). Relying on real-time and interferometric probes, I will discuss how we could observe and characterize the mechanism of MBL. (1)
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