Quantum error mitigation in quantum annealing

Abstract Quantum error mitigation (QEM) presents a promising near-term approach to reducing errors when estimating expectation values in quantum computing. Here, we introduce QEM techniques tailored for quantum annealing, using zero-noise extrapolation (ZNE). We implement ZNE through zero-temperature and zero-time extrapolations. The practical zero-time extrapolation developed exploits the Kibble-Zurek mechanism so that only problem-Hamiltonian rescaling is required. We conduct experimental investigations into the quantum critical and post-critical dynamics of a transverse-field Ising spin chain by examining statistics with weak and strong post-critical dynamics. We demonstrate successful mitigation of thermal noise and non-thermal errors through both of these extrapolation techniques.

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Publication Details

Journal
npj Quantum Information
Published
2025-03-06
DOI
https://doi.org/10.1038/s41534-025-00977-3
Citations
5
Primary Topic
Quantum Computing Algorithms and Architecture
Type
article
Field-Weighted Citation Impact
12.40

Funders

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article en
5 citations

Abstract

Abstract Quantum error mitigation (QEM) presents a promising near-term approach to reducing errors when estimating expectation values in quantum computing. Here, we introduce QEM techniques tailored for quantum annealing, using zero-noise extrapolation (ZNE). We implement ZNE through zero-temperature and zero-time extrapolations. The practical zero-time extrapolation developed exploits the Kibble-Zurek mechanism so that only problem-Hamiltonian rescaling is required. We conduct experimental investigations into the quantum critical and post-critical dynamics of a transverse-field Ising spin chain by examining statistics with weak and strong post-critical dynamics. We demonstrate successful mitigation of thermal noise and non-thermal errors through both of these extrapolation techniques.

npj Quantum InformationVol. 11(1)
Jagiellonian University (PL), D-Wave Systems (Canada) (CA), University of British Columbia (CA)
U.S. Department of Energy, Canadian Institute for Advanced Research, European Commission, Canada First Research Excellence Fund, Office of Science, Natural Sciences and Engineering Research Council of Canada
Climate action
Openalex Percentile: Top 2%
Quantum Computing Algorithms and Architecture
12.40
DOIOpen Access PDFOpenAlex
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