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Lecture Andrei Malyshev


06 april 2004 FWN-Building 5113.0201, Nijenborgh 4, 9747 AG, Groningen
Speaker: Dr. Andrei Malyshev
Affiliation: Department of Applied Physics, Salamanca University, Spain and Ioffe Physico-Technical Institute St.-Petersburg, Russia
Title: Localisation-delocalisation transition in one-dimensional systems with non-random long-range hopping
Date: Tue Apr 6, 2004
Start: 11.00
Location: FWN-Building 5113.0201
Host: J. Knoester
Telephone: +31 50 363 4369


We consider a two-parameter one-dimensional Hamiltonian with uncorrelated diagonal disorder and non-random long-range inter-site interaction J_mn=J/|m-n|^µ. The model is critical at 1<µ<3/2 and reveals the localisation-delocalisation transition with respect to the disorder magnitude. To detect the transition we analyse level and wave function statistics. It is demonstrated also that in the marginal case (µ=3/2) all states are localised within the present model.

Laatst gewijzigd:22 oktober 2012 14:30