Hellmann–Feynman theorem

theorem that relates the derivative of the total energy with respect to a parameter, to the expectation value of the derivative of the Hamiltonian with respect to that same parameter

Wikidata entity: Q906809

P2534	defining formula	Math	$\frac{d E_{λ}}{d λ} = ⟨ ψ_{λ} \| \frac{d {\hat{H}}_{λ}}{d λ} \| ψ_{λ} ⟩$	???
P31	instance of	...	Q65943 (theorem)	theorem
P6104	maintained by WikiProject	...	Q8487137 (WikiProject Mathematics)	WikiProject Mathematics
P138	named after	...	Q39246 (Richard Feynman)	Richard Feynman
P138	named after	...	Q89754 (Hans Hellmann)	Hans Hellmann
P361	part of	...	Q944443 (list of theorems)	list of theorems

External Ids

P646	Freebase ID	/m/06g7dd
P6366	Microsoft Academic ID (discontinued)	163386847
P10376	ScienceDirect topic ID	chemistry/hellmann-feynman-theorem

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