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Boson-controlled quantum transport

A. Alvermann·D. M. Edwards·H. Fehske
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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 analyse the model by exactly calculating the optical conductivity, Drude weight, spectral functions, groundstate dispersion and particle-boson correlation functions for a 1D infinite system.

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A. Alvermann, D. M. Edwards, H. Fehske. 2007-01-22. Boson-controlled quantum transport. https://doi.org/10.1103/physrevlett.98.056602

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