On the Hellmann-Feynman theorem in statistical mechanics

• URL: http://arxiv.org/abs/2004.04018v3
• Date: Thu, 30 Apr 2020 21:14:42 GMT
• Title: On the Hellmann-Feynman theorem in statistical mechanics
• Authors: Paolo Amore, Francisco M. Fern\'andez
• Abstract summary: We develop the Hellmann-Feynman theorem in statistical mechanics without resorting to the eigenvalues and eigenvectors of the Hamiltonian operator.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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