Matchgate benchmarking: Scalable benchmarking of a continuous family of many-qubit gates
2022; Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften; Volume: 6; Linguagem: Inglês
10.22331/q-2022-02-21-657
ISSN2521-327X
AutoresJonas Helsen, Sepehr Nezami, Matthew J. Reagor, Michael Walter,
Tópico(s)Quantum and electron transport phenomena
ResumoWe propose a method to reliably and efficiently extract the fidelity of many-qubit quantum circuits composed of continuously parametrized two-qubit gates called matchgates. This method, which we call matchgate benchmarking, relies on advanced techniques from randomized benchmarking as well as insights from the representation theory of matchgate circuits. We argue the formal correctness and scalability of the protocol, and moreover deploy it to estimate the performance of matchgate circuits generated by two-qubit XY spin interactions on a quantum processor.
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