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Stephan P. A. Sauer

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Open access Nov 2025

Cost-Effective Scalable Quantum Error Mitigation for Tiled Ansätze.

The technique, tiled M0, leverages the unique structure of tiled Ansätze to apply a locality approximation to M0 that results in an exponential reduction in the QPU cost of the noise characterization, highlighting its potential use in near-term applications.

Oskar Graulund Lentz Rasmussen, Erik Kjellgren, Peter Reinholdt et al. · 4 citations
Preprint Sep 2026

Implementing QESEM's High-Accuracy Error Mitigation on a Quantum Computer: a Water Potential Energy Surface Study

This work employs QESEM---a characterization-based, unbiased quasi-probabilistic mitigation method---on IBM's Aachen quantum processor to compute the ground-state potential energy surface (PES) of the symmetrically-stretched water molecule, demonstrating that the characterization-based, unbiased error mitigation provid...

Renato Olarte Hernandez, Emanuele Rossi, S. Coriani et al. · 0 citations

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