Boson-controlled quantum transport
强关联电子
2007-05-23 v2
摘要
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.
引用
@article{arxiv.cond-mat/0610592,
title = {Boson-controlled quantum transport},
author = {A. Alvermann and D. M. Edwards and H. Fehske},
journal= {arXiv preprint arXiv:cond-mat/0610592},
year = {2007}
}
备注
4 pages, 6 figures, final version to appear in Phys. Rev. Lett