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IQUIST Young Researchers Seminar: "Stoichiometric Rare-Earth Ion Materials for Quantum Memory Devices," presented by Donny Pearson, Goldschmidt Group
- Event Type
- Seminar/Symposium
- Sponsor
- IQUIST
- Location
- 190 Engineering Sciences Building, 1101 W Springfield Ave, Urbana, IL 61801
- Date
- Dec 14, 2022 12:00 - 12:50 pm
- Speaker
- Donny Pearson, Goldschmidt Group, Department of Physics, UIUC
- Contact
- Wolfgang Pfaff
- wpfaff@illinois.edu
- Views
- 33
- Originating Calendar
- IQUIST Young Researchers Seminar
Stoichiometric Rare-Earth Ion Materials for Quantum Memory Devices
Abstract: The long optical and spin coherence properties of rare-earth ions in solids makes them a promising platform for quantum information devices. In particular, quantum memories for long-distance quantum communication. In commercially doped materials, inhomogeneous broadening of the optical transition due to defects in the solid makes the long-lived spin states optically inaccessible. The dominant source of this broadening is the rare-earth dopant ions themselves. We propose that using stoichiometric materials - materials in which the atoms appear in proportion to their chemical formula (i.e. 100% doping) - should provide inhomogeneous linewidths narrow enough to optically resolve the long-lived spin states. Here we present our previous findings, preliminary results, and direction going forward with stoichiometric materials based on europium.