How Often Must We Apply Syndrome Measurements?

May 2015
Topics: Modeling and Simulation, Theory of Computation
Yaakov S. Weinstein, The MITRE Corporation
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Quantum error correction requires encoding quantuminformation into a quantum error correction code andmeasuring error syndromes to detect and identify possible errors. Quantum fault tolerance typically assumes that syndrome measurements are applied after every logical gate at great expense both in time and number of qubits. Here we demonstrate that not only is this not necessary, but that we may achieve greater accuracy when applying syndrome measurements less often. Our simulations are performed within the [[7,1,3]] quantum error correction code but may be applicable to a broad range of codes.​

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