Generalization of the Hellmann-Feynman theorem

Details Generalization of the Hellmann-Feynman theorem Generalization of the Hellmann-Feynman theorem

2009-12-21

arxiv.org/abs/0912.4153v1

Physics

Quantum Physics

6 pages, 1 figure. To appear in Phys. Lett. A

Scientific paper

The well known Hellmann-Feynman theorem of Quantum Mechanics connected with
the derivative of the eigenvalues with respect to a parameter upon which the
Hamiltonian depends, is generalized to include cases in which the domain of
definition of the Hamiltonian of the system also depends on that parameter.

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