A new class of efficient randomized benchmarking protocols

Jonas Helsen*, Xiao Xue, Lieven M.K. Vandersypen, Stephanie Wehner

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

36 Citations (Scopus)
98 Downloads (Pure)


Randomized benchmarking is a technique for estimating the average fidelity of a set of quantum gates. However, if this gateset is not the multi-qubit Clifford group, robustly extracting the average fidelity is difficult. Here, we propose a new method based on representation theory that has little experimental overhead and robustly extracts the average fidelity for a broad class of gatesets. We apply our method to a multi-qubit gateset that includes the T-gate, and propose a new interleaved benchmarking protocol that extracts the average fidelity of a two-qubit Clifford gate using only single-qubit Clifford gates as reference.

Original languageEnglish
Article number71
Number of pages9
JournalNPJ Quantum Information
Issue number1
Publication statusPublished - 2019


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