LightStim automates DEM construction for QEC protocols via an augmented Pauli tableau during compilation, matching public tools on detector counts and error rates while enabling new cross-code designs.
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A new in-situ scheme prepares logical magic states inside arbitrary CSS qLDPC codes using only syndrome-extraction ancillas, with simulations on the [[144,12,12]] BB code and [[225,9,4]] hypergraph-product code showing injection error rates around 10^{-3} or lower under depolarizing and asymmetric噪声
Above a critical noise strength, operator scrambling in random circuits is suppressed leading to classical simulability; below it, simulation stays exponentially hard.
Tricycle codes generalize bicycle codes to three homological dimensions, enabling constant-depth CCZ circuits and single-shot magic state generation with circuit-level thresholds above 0.5% and low error rates at block lengths of 50-100 qubits.
A deterministic recursive quantum circuit prepares antisymmetric states for η fermions in N orbitals with O(η²√N) T-gates and O(√N) dirty ancillas, outperforming sorting methods for η ≲ √N.
A cut-cat state syndrome extraction protocol for CSS codes reduces simultaneous qubit count by more than half and improves two-qubit gate efficiency over flag-based approaches for larger code distances.
citing papers explorer
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LightStim: A Framework for QEC Protocol Evaluation and Prototyping with Automated DEM Construction
LightStim automates DEM construction for QEC protocols via an augmented Pauli tableau during compilation, matching public tools on detector counts and error rates while enabling new cross-code designs.
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In-Situ Simultaneous Magic State Injection on Arbitrary CSS qLDPC Codes
A new in-situ scheme prepares logical magic states inside arbitrary CSS qLDPC codes using only syndrome-extraction ancillas, with simulations on the [[144,12,12]] BB code and [[225,9,4]] hypergraph-product code showing injection error rates around 10^{-3} or lower under depolarizing and asymmetric噪声
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Noise-induced Simulability Transition from Operator Scrambling
Above a critical noise strength, operator scrambling in random circuits is suppressed leading to classical simulability; below it, simulation stays exponentially hard.
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Magic tricycles: Efficient magic state generation with finite block-length quantum LDPC codes
Tricycle codes generalize bicycle codes to three homological dimensions, enabling constant-depth CCZ circuits and single-shot magic state generation with circuit-level thresholds above 0.5% and low error rates at block lengths of 50-100 qubits.
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Recursive algorithm for constructing antisymmetric fermionic states in first quantization mapping
A deterministic recursive quantum circuit prepares antisymmetric states for η fermions in N orbitals with O(η²√N) T-gates and O(√N) dirty ancillas, outperforming sorting methods for η ≲ √N.
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Fault-Tolerant Cut-Cat State Syndrome Extraction for Quantum Codes
A cut-cat state syndrome extraction protocol for CSS codes reduces simultaneous qubit count by more than half and improves two-qubit gate efficiency over flag-based approaches for larger code distances.