Randomized benchmarking in the analogue setting
Derbyshire, E. and Malo, J. Yago and Daley, A. J. and Kashefi, E. and Wallden, P. (2020) Randomized benchmarking in the analogue setting. Quantum Science and Technology, 5 (3). 034001. (https://doi.org/10.1088/2058-9565/ab7eec)
Preview |
Text.
Filename: Derbyshire_etal_QST_2020_Randomized_benchmarking_in_the_analogue.pdf
Final Published Version License: Download (2MB)| Preview |
Abstract
Current development in programmable analogue quantum simulators (AQS), whose physical implementation can be realised in the near-term compared to those of large-scale digital quantum computers, highlights the need for robust testing techniques in analogue platforms. Methods to properly certify or benchmark AQS should be efficiently scalable, and also provide a way to deal with errors from state preparation and measurement (SPAM). Up to now, attempts to address this combination of requirements have generally relied on model-specific properties. We put forward a new approach, applying a well-known digital noise characterisation technique called randomized benchmarking (RB) to the analogue setting. RB is a scalable experimental technique that provides a measure of the average error-rate of a gate-set on a quantum hardware, incorporating SPAM errors. We present the original form of digital RB, the necessary alterations to translate it to the analogue setting and introduce the analogue randomized benchmarking protocol (ARB). In ARB we measure the average error-rate per time evolution of a family of Hamiltonians and we illustrate this protocol with two case-studies of analogue models; classically simulating the system by incorporating several physically motivated noise scenarios. We find that for the noise models tested, the data fit with the theoretical predictions and we gain values for the average error rate for differing unitary sets. We compare our protocol with other relevant RB methods, where both advantages (physically motivated unitaries) and disadvantages (difficulty in reversing the time-evolution) are discussed.
ORCID iDs
Derbyshire, E., Malo, J. Yago ORCID: https://orcid.org/0000-0001-5588-9183, Daley, A. J. ORCID: https://orcid.org/0000-0001-9005-7761, Kashefi, E. and Wallden, P.;-
-
Item type: Article ID code: 72833 Dates: DateEvent31 July 2020Published23 April 2020Published Online11 March 2020AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 18 Jun 2020 15:24 Last modified: 16 Sep 2024 00:50 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/72833