Subject: [Qirg] quantum certification and benchmarking

From: Rodney Van Meter <[email-masked]>
Date: Tue, 29 Oct 2019 13:43:22 +0900

This is probably mostly too low-level for this forum, but if you’re interested:
https://arxiv.org/abs/1910.06343 <https://arxiv.org/abs/1910.06343>

Survey paper for Nature Reviews on how to confirm that your quantum device is doing what you designed it to do.  Randomized benchmarking (RB) is the current hot trend for systems.  A thing called the “diamond norm” (no, I could not write code to calculate this without a *lot* of study) is one measure of how far your device is from what you intended, aiming at a process or a channel (e.g., memory over time), whereas the fidelity that we often talk about usually refers to a measure of the quality of the state itself.

I was prompted to send this because the paper contains a table that discusses applications of quantum networks, specifically blind computation and secret sharing, and how they might be checked.

—Rod

Rodney Van Meter
Professor, Faculty of Environment and Information Studies
Keio University, Japan
[email-masked]