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Colloquium

Point Defects in Crystals: Trapped Atoms for Quantum Technologies

Kai-Mei Fu, University of Washington Dept. of Physics
Location: AQ3149

Friday, 12 September 2025 02:30PM PDT
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Synopsis

Point defects in crystals are the solid-state analog to trapped ions. Thus these 鈥渜uantum defects鈥, which can be integrated into solid-state devices, have gained interest as quantum sensors and qubit candidates for scalable quantum networks. In this talk, I will introduce some of the basic quantum defect properties desirable for quantum technologies. I will highlight my own group鈥檚 efforts at understanding and controlling the properties of defects in diamond including (1) synthesis, frequency and emission control of deep-level vacancy complexes in diamond and (2) properties of shallow-level donors in ZnO, including single donors and intentionally synthesized donors in ZnO.