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Events on Tuesday, February 11th, 2020

Chaos & Complex Systems Seminar
Learning with scarce data: The role of side information, simulators, and GANs
Time: 12:05 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Kangwook Lee, UW Department of Electrical and Computer Engineering
Abstract: In this talk, I will present the role of side information, simulators, and GANs for learning with scarce data. In the first part, I will talk about the role of similarity graphs in recommendation systems. In the second part, the role of simulators and GANs will be discussed.
Host: Clint Sprott
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"Physics Today" Undergrad Colloquium (Physics 301)
From nanoparticles to reefs
Time: 1:20 pm
Place: 2241 Chamberlin Hall
Speaker: Pupa Gilbert, UW Madison Department of Physics
Host: Sridhara Dasu
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Atomic Physics Seminar
QC Cluster Seminar
Optical photon generation from a superconducting qubit
Time: 3:00 pm
Place: 5310 Chamberlin Hall
Speaker: Alp Sipahigil, California Institute of Technology
Abstract: The ability to store, transfer, and process quantum information promises to transform how we calculate, communicate, and measure. The realization of large-scale quantum systems that can achieve these tasks is an outstanding challenge and an exciting frontier in modern physics. In the past two decades, superconducting circuits based on Josephson junctions emerged as a promising platform for processing quantum information. However, these systems operate at low temperatures and microwave frequencies, and require a coherent interface with optical photons to transfer quantum information across long distances. In this talk, I will present our recent experiments demonstrating quantum transduction of a superconducting qubit excitation to an optical photon. I will describe how we use mesoscopic mechanical oscillators in their quantum ground states to convert single photons from microwave frequencies to the optical domain. I will conclude by discussing the prospects of this approach for realizing future quantum networks based on superconducting quantum processors and mechanical quantum memories.
Host: Mark Saffman
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Council Meeting
Time: 4:00 pm
Place: 2314 Chamberlin Hall
Host: Sridhara Dasu
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