Séminaire - Mete Atatüre : Shedding Light on a Central Spin System: How Quantum Optics Can Tame a Noisy Nuclear Spin Ensemble

Pascale SenellartChaire annuelle Innovation technologique Liliane Bettencourt (2025-2026)Collège de FranceAnnée 2025-2026Technologies quantiques émergentesMete AtatüreProfessor, Professor of Physics, University of CambridgeSéminaire - Mete Atatüre : Shedding Light on a Central Spin System: How Quantum Optics Can Tame a Noisy Nuclear Spin EnsembleRésuméOptically active spins in solids are strong candidates for scalable devices towards quantum networks. Semiconductor quantum dots set the state-of-the-art as single-photon sources with high level tuneability, brightness, and indistinguishability. In parallel, their inherently mesoscopic nature leads to a unique realisation of a tripartite interface between light, an electron spin and a nuclear spin ensemble. Controlling these interactions create opportunities to realize a controllable central spin system. I will present a journey from treating the nuclei as nuisance to observing their collective states and eventually to their function as a quantum register to store quantum information, all tailored via an electron driven by light.Mete AtatüreMete Atatüre is a Professor of Physics and the Head of the Cavendish Laboratory, Cambridge. He completed his PhD at Boston University in 2002 and then worked as a Postdoctoral Fellow at ETH Zurich. He joined the Cavendish Laboratory in 2007 as an Assistant Professor and received his full Professorship in 2015. His research efforts straddle multiple material platforms for quantum networks and quantum sensing. He is the co-founder and Scientific Advisor of Nu Quantum Ltd. developing quantum network solutions. He is a Fellow of Optica, Academia Europaea, Institute of Physics, and Science Academy Turkey. He was awarded the IoP Thomas Young Medal and Prize in 2020 and the 2024 Koc Medal of Science for his contributions in quantum technologies.