Time evolution of wave-packets in quasi-1D disordered media View Full Text


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Article Info

DATE

2000-04

AUTHORS

A. Politi, S. Ruffo, L. Tessieri

ABSTRACT

We have investigated numerically the quantum evolution of a-like wave-packet in a quenched disordered medium described by a tight-binding Hamiltonian with long-range hopping (band random matrix approach). We have obtained clean data for the scaling properties in time and in the bandwidth b of the packet width and its fluctuations with respect to disorder realizations. We confirm that the fluctuations of the packet width in the steady-state show an anomalous scaling [0pt] with [0pt]. This can be related to the presence of non-Gaussian tails in the distribution of [0pt]. Finally, we have analysed the steady state probability profile and we have found 1/b corrections with respect to the theoretical formula derived by Zhirov in the limit, except at the origin, where the corrections are. More... »

PAGES

673-679

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s100510051078

DOI

http://dx.doi.org/10.1007/s100510051078

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1029178476


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