Displaced Drude peak and bad metal from the interaction with slow fluctuations.
Displaced Drude peak and bad metal from the interaction with slow fluctuations.
Scattering by slowly fluctuating degrees of freedom can cause a transient localization of the current-carrying electrons in metals, driving the system away from normal metallic behavior. We illustrate and characterize this general phenomenon by studying how signatures of localization emerge in the optical conductivity of electrons interacting with slow bosonic …