期刊
PHYSICAL REVIEW A
卷 92, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.92.060302
关键词
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资金
- U.S. Army Research Office [W911NF-14-1-0103]
- CIFAR
- Government of Ontario
- Government of Canada through NSERC
- Government of Canada through Industry Canada
We describe a practical experimental protocol for robustly characterizing the error rates of non-Clifford gates associated with dihedral groups, including small single-qubit rotations. Our dihedral benchmarking protocol is a generalization of randomized benchmarking that relaxes the usual unitary 2-design condition. Combining this protocol with existing randomized benchmarking schemes enables practical universal gate sets for quantum information processing to be characterized in a way that is robust against state-preparation and measurement errors. In particular, our protocol enables direct benchmarking of the p/8 gate even under the gate-dependent error model that is expected in leading approaches to fault-tolerant quantum computation.
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