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.
Tradeoffs for Reliable Quantum Information Storage in 2D Systems , volume=
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Compactification of a single higher-dimensional hypergraph-product fracton model yields a broad family of translation-invariant quantum LDPC codes that includes fracton models and all A2BGA codes such as BB codes.
Quasi-orthogonal stabilizer codes relax orthogonality constraints to achieve higher logical rates and up to two orders of magnitude better error suppression under depolarizing noise.
citing papers explorer
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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.
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Translation-invariant quantum low-density parity-check codes from compactified fracton models
Compactification of a single higher-dimensional hypergraph-product fracton model yields a broad family of translation-invariant quantum LDPC codes that includes fracton models and all A2BGA codes such as BB codes.
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Quasi-Orthogonal Stabilizer Design for Efficient Quantum Error Suppression
Quasi-orthogonal stabilizer codes relax orthogonality constraints to achieve higher logical rates and up to two orders of magnitude better error suppression under depolarizing noise.