Autonomous quantum error correction of Gottesman-Kitaev-Preskill states
Quantum Physics
2023-10-20 v2 Mesoscale and Nanoscale Physics
Abstract
The Gottesman-Kitaev-Preskill (GKP) code encodes a logical qubit into a bosonic system with resilience against single-photon loss, the predominant error in most bosonic systems. Here we present experimental results demonstrating quantum error correction of GKP states based on reservoir engineering of a superconducting device. Error correction is made autonomous through an unconditional reset of an auxiliary transmon qubit. The lifetime of the logical qubit is shown to be increased from quantum error correction, therefore reaching the point at which more errors are corrected than generated.
Keywords
Cite
@article{arxiv.2310.11400,
title = {Autonomous quantum error correction of Gottesman-Kitaev-Preskill states},
author = {Dany Lachance-Quirion and Marc-Antoine Lemonde and Jean Olivier Simoneau and Lucas St-Jean and Pascal Lemieux and Sara Turcotte and Wyatt Wright and Amélie Lacroix and Joëlle Fréchette-Viens and Ross Shillito and Florian Hopfmueller and Maxime Tremblay and Nicholas E. Frattini and Julien Camirand Lemyre and Philippe St-Jean},
journal= {arXiv preprint arXiv:2310.11400},
year = {2023}
}
Comments
6 pages, 3 figures + 26 pages, 12 figures