Year: 1998
Type: article
Abstract: We review the time evolution of wave packets at the metal—insulator transition in two- and three-dimensional disordered systems. The importance of scale invariance and multifractal eigenfunction fluctuations is stressed. The implications of the frequency and wave-vector dependences of the diffusion coefficient are compared with the results of numerical simulations. We argue that network models are particularly suited to the investigation of the dynamics of disordered systems.
Source: Philosophical Magazine B
Authors: Bodo Huckestein, Rochus Klesse
Institution: University of Cologne
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Deutsche Forschungsgemeinschaft
OpenAlex ID: W2116298425