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Generalization of the Hellmann-Feynman theorem |
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| Authors: | J.G. Esteve,Fernando Falceto,C. Garcí a Canal |
| Affiliation: | a Departamento de Física Teórica, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain b Instituto de Biocomputación y Física de Sistemas complejos (BIFI), Universidad de Zaragoza, 50009 Zaragoza, Spain c Laboratorio de Física Teórica, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and IFLP-CONICET, Argentina |
| Abstract: | 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. |
| Keywords: | Quantum mechanics Hellmann-Feynman theorem |
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