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Reverse quantum annealing inside the Quantum Annealing Eigensolver framework reduced ground-state energy errors for alkaline-earth monofluoride molecules, though the reported 82.3% to 98.1% reduction is measured against forward-annealing starting points, not against classical benchmarks. The article is light on scaling evidence, and its own text flags that question as open. For quantum readers, the useful signal is incremental progress on error mitigation for annealing hardware in chemistry, not a demonstrated route to practical molecular modelling.
Researchers Calculate Molecule Energy to Sub-Millihartree Accuracy
Eliminating between 82. 3% and 98. 1% of calculation errors represents a leap towards precise molecular modelling with quantum computers.
Quantum annealing accurately calculates molecular ground-state energies. Applying reverse quantum annealing within a Quantum Annealing Eigensolver framework sharply improves these calculations for alkaline-earth monofluoride molecules by minimising errors from initial attempts at solving the problem. The method allows computation of electronic structures with sub-milliHartree chemical accuracy; a level of precision vital for understanding bonding, stability and other key properties. A technique for calculating molecular energy…
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