Syndrome resampling increases QEC thresholds and cuts logical errors by up to four orders of magnitude by biasing toward likely syndromes, linked to Rényi coherent information phase transitions.
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A new sparse Pauli-frame method shows coherent noise thresholds are overestimated by a factor of ~4 under Pauli-twirling and revises the T-to-S gate error rate factor to as high as 7 at distance d=5.
A defect-adaptive lattice surgery technique reconstructs joint logical parities on irregular surface-code patches via GF(2) binary synthesis from seam measurements and pre-merge constraints, yielding executable rules or failure certificates while preserving effective distance.
SCALA is a signaling cellular automaton with local attraction that achieves ~7.5% threshold and p_L proportional to p^{d/4} scaling for toric codes while keeping computation strictly local and robust to measurement and decoder noise.
A systematic graph-state protocol yields a family of [[n,1,3]] non-CSS codes that preserve bare-ancilla fault tolerance against hook errors and includes one code with higher rate than prior examples under depolarizing noise.
Clifford-deformed elongated compass codes exhibit bias-dependent thresholds and outperform the XZZX surface code at moderate dephasing biases under code capacity noise.
citing papers explorer
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Syndrome resampling enhances quantum error correction thresholds
Syndrome resampling increases QEC thresholds and cuts logical errors by up to four orders of magnitude by biasing toward likely syndromes, linked to Rényi coherent information phase transitions.
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Computing logical error thresholds with the Pauli Frame Sparse Representation
A new sparse Pauli-frame method shows coherent noise thresholds are overestimated by a factor of ~4 under Pauli-twirling and revises the T-to-S gate error rate factor to as high as 7 at distance d=5.
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Defect-Adaptive Lattice Surgery on Irregular Boundary Surface-Code Patches
A defect-adaptive lattice surgery technique reconstructs joint logical parities on irregular surface-code patches via GF(2) binary synthesis from seam measurements and pre-merge constraints, yielding executable rules or failure certificates while preserving effective distance.
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High-performance cellular automaton decoders for quantum repetition and toric code
SCALA is a signaling cellular automaton with local attraction that achieves ~7.5% threshold and p_L proportional to p^{d/4} scaling for toric codes while keeping computation strictly local and robust to measurement and decoder noise.
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Fault-tolerant syndrome extraction in [[n,1,3]] non-CSS code family generated using measurements on graph states
A systematic graph-state protocol yields a family of [[n,1,3]] non-CSS codes that preserve bare-ancilla fault tolerance against hook errors and includes one code with higher rate than prior examples under depolarizing noise.
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Clifford-Deformed Compass Codes
Clifford-deformed elongated compass codes exhibit bias-dependent thresholds and outperform the XZZX surface code at moderate dephasing biases under code capacity noise.