Fully Scalable Randomized Benchmarking Without Motion Reversal

Sep 10, 2023
17 pages
Published in:
  • PRX Quantum 5 (2024) 3, 030334
  • Published: Aug 1, 2024
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DOI:

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Abstract: (APS)
We introduce binary randomized benchmarking (BiRB), a protocol that streamlines traditional RB by using circuits consisting almost entirely of independent identically distributed (IID) layers of gates. BiRB reliably and efficiently extracts the average error rate of a Clifford gate set by sending tensor-product eigenstates of random Pauli operators through random circuits with IID layers. Unlike existing RB methods, BiRB does not use motion reversal circuits—i.e., circuits that implement the identity (or a Pauli) operator—which simplifies both the method and the theory proving its reliability. Furthermore, this simplicity enables scaling BiRB to many more qubits than the most widely used RB methods.
Note:
  • 9 pages + appendices, 5 figures, v2: Close to published version, fixed typos in theory section