Neural variational Monte Carlo uses wavefunction derivatives in local-energy calculations. The correct derivative representation depends on the ansatz, coordinates, and integration contract.
A separate application surface
The FermiNet integration distribution is outside the current 16-package substrate. Its historical imports and benchmark claims should not be treated as current substrate guarantees.
Check the consumer release and its tested dependency constraints before replacing a kernel. Evaluate both numerical results and the full training procedure on representative systems.