A note on verification procedures for quantum noiseless subsystems
Lorenza Viola, Emanuel Knill
Abstract
We establish conditions under which the experimental verification of quantum error-correcting behavior against a linear set of error operators suffices for the verification of noiseless subsystems of an error algebra contained in . From a practical standpoint, our results imply that the verification of a noiseless subsystem need not require the explicit verification of noiseless behavior for all possible initial states of the syndrome subsystem.
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