Characterization and verification of meso-scale quantum devices
Current experiments in fault-tolerant quantum computing are at the level where high-fidelity quantum gates can be performed on encoded logical qubits. As the accuracy of these gates improves and we consider scaling yet further, it is a major challenge to determine whether the effective noise at the logical level is consistent with the threshold and if it will lead to a reasonable overhead. This talk will survey recent progress on addressing these questions, highlighting the state-of-the-art methods that can help us debug our quantum computers. In particular, I will show how coherent errors might be significantly more damaging to computations than previously assumed, and what characterization methods can be used to detect and compensate for such errors.
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Specialized talk by Steve Flammia
“Tailored error-correcting codes for fault-tolerant quantum computing”
Tuesday 29 March 11am @ YQI
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