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cond-mat.mtrl-sci2026
The principle of detailed balance between electrons and phonons in presence of excitonic effects
Alberto Guandalini, Giovanni Caldarelli, Francesco Mauri +1
Based on a many-body formulation, we derive an electron-phonon coupling including excitonic effects that preserves thermodynamic detailed balance between electronic and phononic sc…
cond-mat.mtrl-sci2026
Effective single particle picture for anharmonic lattice dynamics: a Rosetta stone for electronic and ionic response
Giovanni Caldarelli, Francesco Mauri
We establish a theoretical framework for the dynamics of a lattice of ions in a mean-field approach, where anharmonicity is included via self-consistency. In this picture, the many…