Robust randomized benchmarking of quantum processes

Details Robust randomized benchmarking of quantum processes Robust randomized benchmarking of quantum processes

2010-09-19

arxiv.org/abs/1009.3639v1

Phys. Rev. Lett. 106, 180504 (2011)

Physics

Quantum Physics

4+ pages, 1 figure, and 1 table

Scientific paper

10.1103/PhysRevLett.106.180504

We describe a simple randomized benchmarking protocol for quantum information processors and obtain a sequence of models for the observable fidelity decay as a function of a perturbative expansion of the errors. We are able to prove that the protocol provides an efficient and reliable estimate of an average error-rate for a set operations (gates) under a general noise model that allows for both time and gate-dependent errors. We determine the conditions under which this estimate remains valid and illustrate the protocol through numerical examples.

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