Elizabeth Goldschmidt, University of Illinois Urbana-Champaign
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Abstract: Optically active and highly coherent emitters in solids are a promising platform for a wide variety of quantum information applications, particularly quantum memory and other quantum networking tasks. Rare-earth atoms, in addition to having record long coherence times, have the added benefit that they can be hosted in a wide range of solid-state materials. We can thus target particular materials (and choose particular rare-earth species and isotopes) that enable certain applicationspecific functionalities. I will give an overview of this promising field and discuss several ongoing projects with rare-earth atoms in different host materials and configurations. This includes efforts to identify and grow new materials with rare-earth atoms at stoichiometric concentrations in order to reduce disorder-induced inhomogeneous broadening, as well as photonic integration of rareearth doped samples to increase the light-atom interaction for practical quantum devices.
Bio: Professor Goldschmidt is an experimentalist in quantum optics and quantum information. She received her bachelors in physics from Harvard University in 2006 and her doctorate in physics from the University of Maryland as a Joint Quantum Institute graduate fellow in 2014. Her graduate research was on single photon technologies and optical quantum memory. She was a National Research council postdoctoral fellow at the National Institute of Standards and Technology from 2014-2016 where she studied ultracold and Rydberg excited atoms in optical lattices for quantum simulation. She was a staff scientist at the US Army Research Laboratory studying quantum optics in solid-state systems before joining the faculty at the University of Illinois in the fall of 2019.