Boson-controlled quantum transport

Details Boson-controlled quantum transport Boson-controlled quantum transport

2006-10-21

arxiv.org/abs/cond-mat/0610592v2

Phys. Rev. Lett. 98, 056602 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 6 figures, final version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.98.056602

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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