Bloch particle in presence of dc and ac fields

  • The paper studies metastable states of a Bloch electron in the presence of external ac and dc fields. Provided resonance condition between period of the driving frequency and the Bloch period, the complex quasienergies are numerically calculated for two qualitatively different regimes (quasiregular and chaotic) of the system dynamics. For the chaotic regime an effect of quantum stabilization, which suppresses the classical decay mechanism, is found. This effect is demonstrated to be a kind of quantum interference phenomenon sensitive to the resonance condition.

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Metadaten
Author:Markus Glück, A. R. Kolovsky, Hans Jürgen Korsch
URN (permanent link):urn:nbn:de:hbz:386-kluedo-8453
Document Type:Article
Language of publication:English
Year of Completion:1999
Year of Publication:1999
Publishing Institute:Technische Universität Kaiserslautern
Tag:Quantum Chaos; Wannier-Bloch states
Faculties / Organisational entities:Fachbereich Physik
DDC-Cassification:530 Physik

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