2020/11/30 by Simone Selenu, Selenu, S.
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Quantum Mechanics and Applications #Quantum Electrodynamics and Casimir Effect
paper · pdf · doi:10.48550/arxiv.2012.00112
In this article it will be introduced a new theorem, can be considered a generalization of Hellmann-Feynman theorem[1]. The latter used in conjunction with the quantization of the free energy[2] of a quantum system allows to derive strightly the electronic Heat variations of a quantum electronic system, in its condensed phase of eigenstates, showing its agreement with classical thermodynamics, making then possible to desing ab inito quantum models of the electronic structure in its thermodynamical states.