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SUMMARY:IMX Seminar Series - Materials for Superconducting Quantum Computi
 ng
DTSTART:20220328T131500
DTEND:20220328T141500
DTSTAMP:20260510T025340Z
UID:37ccc9b41b4d23afd56d88cc0dc284d16b0dd188d3f8da4828bc3f80
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Andrew Houck\, Princeton University\, USA\nAbstract : Th
 e superconducting transmon qubit is a leading platform for quantum computi
 ng and quantum science. Building large\, useful quantum systems based on t
 ransmon qubits will require significant improvements in qubit relaxation a
 nd coherence times\, which are orders of magnitude shorter than limits imp
 osed by bulk properties of the constituent materials. This indicates that 
 relaxation likely originates from uncontrolled surfaces\, interfaces\, and
  contaminants. Previous efforts to improve qubit lifetimes have focused pr
 imarily on designs that minimize contributions from surfaces. However\, si
 gnificant improvements in the lifetime of two-dimensional transmon qubits 
 have remained elusive for several years. We will present a materials-based
  approach to reliably reproduce long coherence times by using tantalum-bas
 ed devices\, and present detailed characterization of devices to understan
 d remaining sources of decoherence.\n\nPapers:  Place et al\, Nature Com
 munications volume 12\, Article number: 1779 (2021)\nHazard et al\, Phys.
  Rev. Lett. 122\, 010504 (2019)\nBio: Andrew Houck is a professor in the 
 Department of Electrical Engineering at Princeton University and Director 
 of the Princeton Quantum Institute. His current research centers on quantu
 m computing and quantum simulation with superconducting circuits. Specific
  projects include discovering and implementing novel qubits\, materials fo
 r quantum information\, and using graph theory to inform lattice design fo
 r building artificial quantum materials. He teaches quantum information an
 d has helped developed a new series of freshman physics and math courses t
 hat significantly reduces the achievement gap among first year students. H
 ouck serves as the Director of the Co-Design Center for Quantum Advantage\
 , a DOE center run out of Brookhaven National Laboratory.
LOCATION:https://epfl.zoom.us/j/68532296336?pwd=UXBrN1RBWHVFQjVjSko2NDF3S3
 Awdz09
STATUS:CONFIRMED
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