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SPECIAL SEMINAR: Violating Bell's inequality with remotely connected superconducting qubits

Topic: 
Violating Bell's inequality with remotely connected superconducting qubits
Tuesday, December 17, 2019 - 1:30pm
Venue: 
Spilker 232
Speaker: 
Youpeng Zhong (University of Chicago)
Abstract / Description: 

Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, as entanglement is required to achieve and verify secure communications. Remote entanglement has been realized using a number of different probabilistic schemes, but deterministic remote entanglement has only been demonstrated recently, using a variety of superconducting circuit approaches. However, the deterministic violation of a Bell inequality, a strong measure of quantum correlation, has not been demonstrated so far in a superconducting quantum communication architecture, in part because achieving sufficiently strong correlation requires fast and accurate control of the emission and capture of the entangling photons. Here, we present a simple and robust architecture for achieving this benchmark result in a superconducting system.

Bio:

Youpeng received his B.S. in Physics from Zhejiang University, China in 2013, and received his Ph.D. in Molecular Engineering from the Pritzker School of Molecular Engineering, University of Chicago in March 2019 under the supervision of Andrew N. Cleland, he is now continuing his research in the Cleland group as a post-doc. Youpeng's research interests focus on superconducting quantum circuits, and he has been working on the project of quantum communication with superconducting qubits during his Ph.D.