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Physics colloquium-“Towards New Circuit Elements for Protected Superconducting Qubits”

April 11 @ 4:00 pm - 5:00 pm

Andras Gyenis
University of Colorado @ Boulder, Electrical, Computer & Energy Engineering

Abstract: Quantum-based electronics is a rapidly accelerating technology, where information is encoded in the quantum mechanical states of coupled natural or artificial atoms. To unlock the exceptional potential of quantum computers, one of the key challenges that the field has to overcome is to preserve the coherence of a quantum superposition over extended times. Besides implementing quantum error correction schemes, a complementary approach to prolong the coherence of quantum processors is to develop qubits that are intrinsically protected against decoherence. In this talk, we present ideas and preliminary results on how to use various quantum materials that can open the way to building superconducting qubits with protection against information loss. In particular, we focus on disordered superconductors and semiconductor-based hybrid superconducting devices.

Bio: Prior to joining CU Boulder as an assistant professor in electrical engineering, Andras Gyenis received his PhD in physics at Princeton University in 2016, investigating the surface and bulk properties of unconventional superconductors, strongly correlated electronic systems and topological materials using ultra-low temperature scanning tunneling microscopy. He continued as a postdoctoral researcher at the Department of Electrical Engineering at Princeton, focusing on the design, fabrication and measurement of superconducting quantum circuits. Between 2020 and 2021, he worked on developing semiconductor-based quantum devices at the Niels Bohr Institute at the University of Copenhagen as a visiting assistant professor. Gyenis received his BS and MS in experimental condensed matter physics at the Budapest University of Technology, Hungary. The defining feature of his research program at CU Boulder is to realize hybrid quantum devices that harness intrinsic protection to extend the lifetime of quantum processors.
All lectures held in CoorsTek 140 unless otherwise noted


April 11
4:00 pm - 5:00 pm
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CoorsTek Center for Applied Science and Engineering
1523 Illinois St.
Golden, CO 80401 United States
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