Please join us for the first virtual seminar of 2021 on Thursday, January 14th at 11:00 am.
A general framework for randomized benchmarking
Jonas Helsen, University of Amsterdam
The term randomized benchmarking refers to a collection of protocols that in the past decade have become the gold standard for characterizing quantum gates. These protocols aim at efficiently estimating the quality of a set of quantum gates in a way that is resistant to state preparation and measurement errors, and over the years many versions have been devised. In this talk I want to talk about recent work [arXiv:2010.07974] where we develop a comprehensive framework of randomized benchmarking general enough to encompass virtually all known protocols.
I will introduce this framework, which is formulated using Fourier analysis on finite groups, and show how we can use it to obtain broad guarantees on the output data of randomized benchmarking experiments. I will also discuss a scalable post-processing technique to isolate exponential decays, which generalizes several previously proposed methods such as character benchmarking and linear-cross entropy benchmarking.
Join the seminar on Zoom!
Meeting link: https://zoom.us/j/99561408463?pwd=dFFsS1lHK3p1NHZhYjdURkE3cEVhQT09
Meeting ID: 995 6140 8463
Passcode: Wv7NkXT
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If you are interested in presenting at a future seminar, please email either Daniel Grier (daniel.grier@uwaterloo.ca) or Hakop Pashayan (hpashaya@uwaterloo.ca).