Improved ancilla preparation scheme increases fault-tolerant threshold

Ben W. Reichardt

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arxiv quant-ph/0406025 v1 pith:A53NIWSQ submitted 2004-06-04 quant-ph

Improved ancilla preparation scheme increases fault-tolerant threshold

Ben W. Reichardt This is my paper

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We demonstrate an improved concatenated encoded ancilla preparation procedure. Simulations show that this procedure significantly increases the error threshold beneath which arbitrarily long quantum computations are possible.

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Simplified circuit-level decoding using Knill error correction
quant-ph 2026-03 accept novelty 7.0

Knill error correction reduces circuit-level decoding for quantum LDPC codes to the simpler code-capacity decoder while remaining fault-tolerant under locally decaying noise.