Benchmarking Error Mitigation: Artefactual Improvements in Zero-Noise Extrapolation
A study on arXiv benchmarks zero-noise extrapolation (ZNE) error mitigation and finds that some reported improvements may be artefacts rather than genuine error reduction.
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What this could mean
- 0–2 yearsPlausible
This work could enable more reliable evaluation of near-term quantum devices by flagging when zero-noise extrapolation produces artificially optimistic results.
By demonstrating that ZNE can create spurious improvements, the study provides a specific failure mode that can be tested for. Incorporating this insight into benchmarking protocols could help researchers avoid overestimating the performance of NISQ processors.
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