Under circuit-level noise the predicted advantage of bias-optimized rectangular surface codes over XZZX codes vanishes, while a new bias-filtering CNOT gadget recovers only a few-percent threshold improvement for XZZX codes.
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2 Pith papers cite this work. Polarity classification is still indexing.
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quant-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Barbell codes are a family of qLDPC codes with a matching superconducting chip layout enabling constant hardware complexity, simulated to preserve logical information over trillions of QEC cycles at 10^{-4} physical noise with under 30 data qubits per logical qubit.
citing papers explorer
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Optimizing bias-tailored quantum error correction beyond code-capacity noise
Under circuit-level noise the predicted advantage of bias-optimized rectangular surface codes over XZZX codes vanishes, while a new bias-filtering CNOT gadget recovers only a few-percent threshold improvement for XZZX codes.
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Barbell Codes: qLDPC Codes for Superconducting Quantum Hardware
Barbell codes are a family of qLDPC codes with a matching superconducting chip layout enabling constant hardware complexity, simulated to preserve logical information over trillions of QEC cycles at 10^{-4} physical noise with under 30 data qubits per logical qubit.