Qedma and HQC² Demonstrate 30–50× Error Mitigation Advantage in Quantum Chemistry Benchmark

Qedma Quantum Computing and the HQC² research consortium have demonstrated a significant 30–50x reduction in energy estimation error for quantum chemistry calculations on superconducting quantum hardware. Their QESEM software layer, tested on IBM’s Aachen processor, successfully lowered energy estimation errors for a water molecule’s potential energy surface from approximately 500 mHa to within 1.5 mHa, achieving chemical accuracy. This advancement showcases the potential of characterization-driven quantum error mitigation for extracting quantitative molecular properties on current quantum hardware.

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