In and Out-of-Equilibrium Ab Initio Theory of Electrons and Phonons

In this work, we lay down the ab initio many-body quantum theory of electrons and phonons in equilibrium as well as in steady-state or time-varying settings. Our focus is on the harmonic approximation, but the developed tools can readily incorporate anharmonic effects. We begin by showing the necess...

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Bibliographic Details
Main Authors: Gianluca Stefanucci, Robert van Leeuwen, Enrico Perfetto
Format: Article
Language:English
Published: American Physical Society 2023-09-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.13.031026