Quantum error correction below the surface code threshold

R Acharya, L Aghababaie-Beni, I Aleiner… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum error correction provides a path to reach practical quantum computing by
combining multiple physical qubits into a logical qubit, where the logical error rate is …

Learning high-accuracy error decoding for quantum processors

J Bausch, AW Senior, FJH Heras, T Edlich, A Davies… - Nature, 2024 - nature.com
Building a large-scale quantum computer requires effective strategies to correct errors that
inevitably arise in physical quantum systems. Quantum error-correction codes present a way …

Optimization of decoder priors for accurate quantum error correction

V Sivak, M Newman, P Klimov - Physical Review Letters, 2024 - APS
Accurate decoding of quantum error-correcting codes is a crucial ingredient in protecting
quantum information from decoherence. It requires characterizing the error channels …

Improved accuracy for decoding surface codes with matching synthesis

C Jones - arXiv preprint arXiv:2408.12135, 2024 - arxiv.org
We present a method, called matching synthesis, for decoding quantum codes that produces
an enhanced assignment of errors from an ensemble of decoders. We apply matching …

Luci in the surface code with dropouts

DM Debroy, M McEwen, C Gidney, N Shutty… - arXiv preprint arXiv …, 2024 - arxiv.org
Recently, usage of detecting regions facilitated the discovery of new circuits for fault-
tolerantly implementing the surface code. Building on these ideas, we present LUCI, a …

Predictive Window Decoding for Fault-Tolerant Quantum Programs

J Viszlai, JD Chadwick, S Joshi, GS Ravi, Y Li… - arXiv preprint arXiv …, 2024 - arxiv.org
Real-time decoding is a key ingredient in future fault-tolerant quantum systems, yet many
decoders are too slow to run in real time. Prior work has shown that parallel window …