Mainz 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 48: QuanTour IV – Building Blocks
Q 48.1: Invited Talk
Thursday, March 5, 2026, 11:00–11:30, P 7
Quantum teleportation with remote quantum dots in a metropolitan hybrid quantum network — A. Laneve1, G. Ronco1, M. Beccaceci1, F. Salusti2, N. Claro-Rodriguez2, G. De Pascalis1, E. Schöll2, L. Hanschke4, T. M. Krieger3, Q. Buchinger5, S. F. Covre da Silva6, S. Stroj7, S. Höfling5, T. Huber-Loyola8, M. A. Usuga Castaneda9, G. Carvacho1, N. Spagnolo1, •M. B. Rota1, F. Basso Basset10, A. Rastelli3, F. Sciarrino1, K. D. Jöns2, and R. Trotta1 — 1Sapienza Università di Roma, Italy — 2Paderborn University, Germany — 3Johannes Kepler University, Austria — 4Technical University of Munich, Germany — 5University of Würzburg, Germany — 6Universidade Estadual de Campinas, Brazil — 7Vorarlberg University of Applied Sciences, Austria — 8Karlsruhe Institute of Technology, Germany — 9Single Quantum B.V., Delft, The Netherlands — 10Politecnico di Milano, Italy
We demonstrate the first all-photonic quantum teleportation protocol using dissimilar semiconductor quantum dot (QD) emitters, deployed in a hybrid fiber + free-space metropolitan link. Two independent GaAs quantum dots, engineered via nanophotonic cavities, piezoelectric strain tuning and magnetic-field control, serve as the sender and entangled-photon source. The emitters are initially spectrally distinct, through tailored tuning we surpass the classical fidelity limit more than ten standard deviations (0.82(1)). This successful demonstration constitutes a key step toward scalable, QD-based quantum relays and repeaters.
Keywords: quantum teleportation; quantum dots; free space communication; entanglement; quantum communication