by Dorit Aharonov, Ori Alberton, Itai Arad at al.
A detailed presentation of QESEM, a high-accuracy error mitigation framework designed to enable reliable quantum computation on today’s hardware. The work demonstrates how characterization-based, unbiased mitigation techniques can significantly improve the accuracy of quantum circuits across a wide range of devices and applications.
Large-scale experiments on utility-level quantum processors show that QESEM consistently outperforms standard approaches, delivering more accurate and reliable results for complex simulations. These results highlight the growing maturity of error mitigation as a practical tool, bringing quantum systems closer to achieving meaningful advantage on near-term devices.

