Characterization and control of topologically protected charge-parity qubits: Part 1
ORAL
Abstract
Superconducting qubits with topological protection against local noise hold the promise of significantly enhanced coherence times and higher gate fidelities than is possible with conventional qubits. We are developing one such protected design — the hybrid charge-parity qubit — that combines arrays of compact, high inductances and conventional Josephson junctions with individual flux control for tuning each plaquette to a regime with a pi-periodic Josephson energy. With this scheme, concatenating multiple pi-periodic elements further enhances the degree of protection. Here, we will describe our experimental characterization of one- and two-plaquette devices through spectroscopy and time-domain measurements.
*Supported by the U.S. Government under Grant W911NF-18-1-0106
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Presenters
Kenneth Dodge
Physics, Syracuse University
Syracuse University
Authors
Kenneth Dodge
Physics, Syracuse University
Syracuse University
Yebin Liu
Physics, Syracuse University
Syracuse University
Michael Senatore
Physics, Syracuse University
Syracuse University
FNU Naveen
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
Shaojiang Zhu
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
Abigail J Shearrow
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
Andrey Klots
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
Lara Faoro
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
Lev B Ioffe
Google.; University of Wisconsin - Madison
University of Wisconsin - Madison
Physics, University of Wiconsin - Madison
University of Wisconsin
Robert F McDermott
University of Wisconsin - Madison
Department of Physics, University of Wisconsin-Madison, Madison WI, USA
