Thermalization after a quench in the Hubbard-Holstein model occurs via sharp fronts in real time and DMFT iteration space, with electron fronts appearing earlier than phonon fronts at weak coupling.
We implement the self-consistent Migdal approxima- tion for the electron-phonon interaction: (a) Calculate the phonon self-energy Π (polariza- tion operator) with Eq
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Thermalization Fronts in the Hubbard-Holstein Model
Thermalization after a quench in the Hubbard-Holstein model occurs via sharp fronts in real time and DMFT iteration space, with electron fronts appearing earlier than phonon fronts at weak coupling.