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ScienceHacker Newsabout 3 hours ago
Spin audit challenges SQD quantum-chemistry benchmarksA spin audit of sample-based quantum diagonalization (SQD/QSCI) benchmarks on iron-sulfur clusters finds no execution returns the target singlet at competitive energy. At 5.625×10⁷ determinants, the lowest root sits 170 mHa below published energy with ⟨S²⟩=1.37. Measured spin moments should become required benchmark output.
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