OCVF adds a learned neural-network correction to a skeleton Hamiltonian so that the model matches experimental PDF constraints, yielding up to 95.8% better accuracy on BaTiO3 phase-transition temperatures.
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Infusing Experimental Reality into Complex Many-Body Hamiltonians: The Observable-Constrained Variational Framework (OCVF)
OCVF adds a learned neural-network correction to a skeleton Hamiltonian so that the model matches experimental PDF constraints, yielding up to 95.8% better accuracy on BaTiO3 phase-transition temperatures.