Seminar: Prof. Liang Jiang, University of Chicago

Bosonic Quantum Information Processing with Superconducting Circuits

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Presenter: Prof. Liang Jiang, Pritzker School of Molecular Engineering, The University of Chicago

Title: Bosonic Quantum Information Processing with Superconducting Circuits

Abstract:
Bosonic modes are widely used for quantum communication and information processing. Recent developments in superconducting circuits enable us to control bosonic microwave cavity modes and implement arbitrary operations allowed by quantum mechanics, such as quantum error correction against excitation loss errors. We investigate different bosonic encoding and error correction protocols, and provide a perspective on using bosonic quantum error correction for various applications.

Biography:
Liang Jiang theoretically investigates quantum systems and explores various quantum applications, such as quantum sensing, quantum transduction, quantum communication, and quantum computation. His research focuses on using quantum control and error correction to protect quantum information from decoherence to realize robust quantum information processing. He has worked on modular quantum computation, global-scale quantum networks, room-temperature nano-magnetometer, sub-wavelength imaging, micro-optical quantum transduction, and error-correction-assisted quantum sensing and simulation.

Prof. Jiang received his B.S. from Caltech in 2004 and Ph.D. from Harvard in 2009. He then worked as a Sherman Fairchild postdoctoral fellow at Caltech. In 2012 Jiang joined the faculty of Yale as an assistant professor and later as an associate professor of Applied Physics. He was awarded the Alfred P. Sloan Research Fellowship, and the David and Lucile Packard Foundation Fellowship in 2013. In 2019, Jiang moved to his current position as professor at the University of Chicago Pritzker School of Molecular Engineering

1. "Extending the lifetime of a quantum bit with error correction in superconducting circuits" https://www.nature.com/articles/nature18949
2. "Implementing a universal gate set on a logical qubit encoded in an oscillator” https://www.nature.com/articles/s41467-017-00045-1
3. "Controlled release of multiphoton quantum states from a microwave cavity memory” https://www.nature.com/articles/nphys4143
4. "A CNOT gate between multiphoton qubits encoded in two cavities” https://www.nature.com/articles/s41467-018-03059-5
5. "Fault-tolerant detection of a quantum error” https://science.sciencemag.org/content/361/6399/266
6. "On-demand quantum state transfer and entanglement between remote microwave cavity memories” https://www.nature.com/articles/s41567-018-0115-y

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