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QI: Fachverband Quanteninformation
QI 18: Quantum Communication
QI 18.1: Hauptvortrag
Donnerstag, 12. März 2026, 15:00–15:30, BEY/0245
Multipartite Quantum states from guided-wave structures — •Virginia D'Auria1, Adrien Bensemhoun1, Silvia Cassina2, Carlos Gonzalez-Arciniegas3, Mohamed Fauzi Melalkia1, Giuseppe Patera4, Jonathan Faugier-Tovar5, Quentin Wilmar5, Ségolène Olivier5, Alessandro Zavatta6, Anthony Martin1, Jean Etesse1, Laurent Labonté1, and Sébastien Tanzilli1 — 1University Côte d'Azur, Institut of Physics of Nice, Nice, FR — 2University of Insubria, Como, IT — 3University of Virginia, Charlottesville, VA, US — 4University of Lille, Lille, FR — 5CEA-LETI, Grenoble, FR — 6Istituto Nationale di Ottica, Florence, IT
Our experimental work demonstrates multipartite quantum correlation in bright frequency combs out of a microresonator integrated on silicon nitride operating above its oscillation threshold. Multipartite features, going beyond so far reported two-mode correlation, naturally arise due to a cascade of non-linear optical processes, making a single-color laser pump sufficient to initiate their generation. Our results show the transition from two-mode to multipartite correlation.
Keywords: Continuous variable quantum optics; Multipartite entanglement; Frequency modes; Quantum photonics