Efficient measurement of quantum gate error by interleaved randomized benchmarking

Details Efficient measurement of quantum gate error by interleaved randomized benchmarking Efficient measurement of quantum gate error by interleaved randomized benchmarking

2012-03-20

arxiv.org/abs/1203.4550v1

Physics

Quantum Physics

5 pages, 2 figures

Scientific paper

We describe a scalable experimental protocol for obtaining estimates of the error rate of individual quantum computational gates. This protocol, in which random Clifford gates are interleaved between a gate of interest, provides a bounded estimate of the average error of the gate under test so long as the average variation of the noise affecting the full set of Clifford gates is small. This technique takes into account both state preparation and measurement errors and is scalable in the number of qubits. We apply this protocol to a superconducting qubit system and find gate errors that compare favorably with the gate errors extracted via quantum process tomography.

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