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Tue, 23 Jan 2001 00:00:00 +0100Tue, 23 Jan 2001 00:00:00 +0100Wannier-Stark resonances in semiconductor superlattices
https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1153
Wannier-Stark states for semiconductor superlattices in strong static fields, where the interband Landau-Zener tunneling cannot be neglected, are rigorously calculated. The lifetime of these metastable states was found to show multiscale oscillations as a function of the static field, which is explained by an interaction with above-barrier resonances. An equation, expressing the absorption spectrum of semiconductor superlattices in terms of the resonance Wannier-Stark states is obtained and used to calculate the absorption spectrum in the region of high static fields.M. Glück; A. R. Kolovsky; H. J. Korsch; F. Zimmerpreprinthttps://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1153Tue, 23 Jan 2001 00:00:00 +0100Calculation of Wannier-Bloch and Wannier-Stark states
https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/869
The paper discusses the metastable states of a quantum particle in a periodic potential under a constant force (the model of a crystal electron in a homogeneous electric ,eld), which are known as the Wannier-Stark ladder of resonances. An ecient procedure to ,nd the positions and widths of resonances is suggested and illustrated by numerical calculation for a cosine potential.Markus Glück; A. R. Kolovsky; Hans Jürgen Korsch; Nimrod Moseyevpreprinthttps://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/869Mon, 03 Apr 2000 00:00:00 +0200