INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
On the Hellmann-Feynman theorem in statistical mechanics
Autor/es:
FERNÁNDEZ, FRANCISCO M.; AMORE, PAOLO
Revista:
PHYSICS LETTERS A
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2020 vol. 384
ISSN:
0375-9601
Resumen:
In this paper we develop the Hellmann-Feynman theorem in statistical mechanics without resorting to the eigenvalues and eigenvectors of the Hamiltonian operator. Present approach does not require the quantum-mechanical version of the theorem at T=0 and bypasses any discussion about degenerate states.
