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arXiv · 1009.3639

Robust randomized benchmarking of quantum processes

Easwar Magesan·J. M. Gambetta·Joseph Emerson
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Abstract

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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Easwar Magesan, J. M. Gambetta, Joseph Emerson. 2010-09-19. Robust randomized benchmarking of quantum processes. https://doi.org/10.1103/physrevlett.106.180504

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