4月9日【严济慈大讲坛】第三十一讲《Emerging platforms for rare earth based optical quantum technologies》 [2026-04-07]

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报告题目：Emerging platforms for rare earth based optical quantum technologies

报  告 人：Dr. Philippe Goldner（PSL University - CNRS）

报告时间：2026年4月9日（周四）10:00

报告地点：科大东区物质科研楼三楼报告厅

报告摘要：Systems with both spin and optical transitions offer a range of functionalities for quantum technologies. They allow storage and entanglement of photonic quantum states for quantum communications, interfacing processing nodes with optical networks for distributed quantum computing, or efficient detection for quantum sensing. Among various solid-state systems currently considered, rare-earth doped materials stand out as they combine, at cryogenic temperatures, long-lived optical and spin quantum states. Quantum-grade rare earth doped materials are developed in different forms. They include bulk crystals, like Y2SiO5, in which many early demonstrations were performed, and more recently nanostructured materials such as nanoparticles, thin films, or molecular crystals aiming at integration into nanophotonics devices. This fast-expanding field has witnessed impressive progress and hold exciting promises for a broad range of quantum-based applications.

In this talk, we will present some of our recent results in the field, as well as the challenges to be addressed to bring rare-earth doped materials up to the highly demanding requirements of quantum technologies.

报告人简介：Philippe Goldner is a CNRS research director working at the Paris Institute for Chemical Research (Chimie ParisTech, CNRS, PSL University). In 1993, he obtained his PhD and joined the CNRS to work on luminescent rare earth doped materials. He later moved to the French National Center for Telecommunication Studies and in 2002 to Chimie ParisTech graduate school where he founded the Crystal and Quantum State Dynamics Group. The team develops doped various types of crystals for optical quantum technologies. He coordinated the FET-Open project NanOQTech which won him a Stars of Europe award in 2020 and obtained in 2021 an European Union ERC Advanced Grant to develop new hybrid materials for quantum photonics. He received in 2022 the CNRS Silver Medal for outstanding research work and the Philippe A. Guye Prize of the French Academy of Sciences in 2024.

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