Optical response of electrons in a random potential

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Using our recently developed Chebyshev expansion technique for finite-temperature dynamical correlation functions we numerically study the AC conductivity $σ(ω)$ of the Anderson model on large cubic clusters of up to $100^3$ sites. Extending previous results we focus on the role of the boundary conditions and check the consistency of the DC limit, $ω\to 0$, by comparing with direct conductance calculations based on a Greens function approach in a Landauer Büttiker type setup.
2 pages, 3 figs, submitted to SCES'04

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Disordered Systems and Neural Networks

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http://salesiana.dossiersoluciones.com/handle/123456789/24615

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0408265
 http://arxiv.org/abs/cond-mat/0408265
 Physica B 359-361, 786 (2005)
 doi:10.1016/j.physb.2005.01.227

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arXiv