Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série LPENS-BQ
Domaines cond-mat.stat-mech
Date Mardi 1 Octobre 2024
Heure 14:00
Institut LPENS
Salle Conf. IV (Rue Lhomond)
Nom de l'orateur Murciano
Prenom de l'orateur Sara
Addresse email de l'orateur
Institution de l'orateur Caltech
Titre Quantum criticality under imperfect teleportation
Résumé The combination of entanglement, measurement, and classical communication allows the teleportation of quantum states between distant parties. In this talk, I will study the transfer of correlations and entanglement in many-body wavefunctions under imperfect teleportation protocols, specifically focusing on the ground state of a critical Ising chain. I will show that imperfections act as weak measurements on the teleported critical state. Leveraging the theory of measurement-altered quantum criticality, I can quantify the resilience of critical-state teleportation. These findings identify classes of teleportation protocols that either maintain universal long-range entanglement and correlations, weakly modify them, or preserve power-law correlations while eliminating long-range entanglement. Finally, I will highlight a path to experimental realization in analog quantum simulators based on Rydberg atom arrays.
Numéro de preprint arXiv
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