M.S. In Physics – Quantum Computing Events

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Events During the Week of October 9th through October 16th, 2022

Monday, October 10th, 2022

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Tuesday, October 11th, 2022

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Wednesday, October 12th, 2022

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Thursday, October 13th, 2022

Quantum Nanophotonics Hardware: From Nanofabrication to Quantum Circuit Mapping
Time: 4:00 pm - 5:00 pm
Place: MS&E Building room 265
Speaker: Marina Radulaski, Department of Electrical and Computer Engineering University of California - Davis
Abstract: Photonic systems are the leading candidates for deterministic quantum sources, quantum repeaters, and other key devices for quantum information processing. Scalability of this technology depends on the stability, homogeneity and coherence properties of quantum emitters. Here, color centers in wide band gap materials offer favorable properties for applications in quantum memories, single-photon sources, quantum sensors, and spin-photon interfaces [1,2]. Silicon carbide, in particular, has been an attractive commercial host of color centers featuring fiber-compatible single photon emission, long spincoherence times and nonlinear optical properties [3]. Integration of color centers with nanophotonic devices has been a challenging task, but significant progress has been made with demonstrations up to 120-fold resonant emission enhancement of emitters embedded in photonic crystal cavities [4]. A novel direction in overcoming the integration challenge has been the development of triangular photonic devices, recently shown to preserve millisecond-scale spin-coherence in silicon carbide defects [5,6]. Triangular photonics has promising applications in quantum networks, integrated quantum circuits, and quantum simulation. Here, open quantum system modeling provides insights into polaritonic physics achievable with realistic device parameters through evaluation of cavity-protection, localization and phase transition effects [7]. Mapping of this dynamic to gate-based quantum circuits opens doors for quantum advantage in understanding cavity quantum electrodynamical (QED) effects using commercial Noisy Intermediate-Scale Quantum (NISQ) hardware [8].
Host: Mikhail Kats
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Friday, October 14th, 2022

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