title: Boson-controlled quantum transport.
abstract: We study the interplay of collective dynamics and damping in the presence of correlations and bosonic fluctuations within the framework of a newly proposed model, which captures the principal transport mechanisms that apply to a variety of physical systems. We establish close connections to the transport of lattice and spin polarons, or the dynamics of a particle coupled to a bath. We analyze the model by exactly calculating the optical conductivity, Drude weight, spectral functions, ground state dispersion and particle-boson correlation functions for a 1D infinite system.
authors.affiliation: Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, 17489 Greifswald, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Alvermann
authors.forename: D M
authors.initials: DM
authors.lastname: Edwards
authors.forename: H
authors.initials: H
authors.lastname: Fehske