Extending the lifetime of a quantum bit with error correction in superconducting circuits

Nissim Ofek (), Andrei Petrenko (), Reinier Heeres, Philip Reinhold, Zaki Leghtas, Brian Vlastakis, Yehan Liu, Luigi Frunzio, S. M. Girvin, L. Jiang, Mazyar Mirrahimi, M. H. Devoret and R. J. Schoelkopf ()
Additional contact information
Nissim Ofek: Yale University
Andrei Petrenko: Yale University
Reinier Heeres: Yale University
Philip Reinhold: Yale University
Zaki Leghtas: Yale University
Brian Vlastakis: Yale University
Yehan Liu: Yale University
Luigi Frunzio: Yale University
S. M. Girvin: Yale University
L. Jiang: Yale University
Mazyar Mirrahimi: Yale University
M. H. Devoret: Yale University
R. J. Schoelkopf: Yale University

Nature, 2016, vol. 536, issue 7617, 441-445

Abstract: A quantum-error-correction system is demonstrated in which natural errors due to energy loss are suppressed by encoding a logical state as a superposition of Schrödinger-cat states, which results in the system reaching the ‘break-even’ point, at which the lifetime of a qubit exceeds the lifetime of the constituents of the system.

Date: 2016
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DOI: 10.1038/nature18949

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