Bloch oscillations of a soliton in a molecular chain

V. D. Lakhno () and A. N. Korshunova

The European Physical Journal B: Condensed Matter and Complex Systems, 2007, vol. 55, issue 1, 85-87

Abstract: This paper presents the results of numerical experiments simulating Bloch oscillations of solitons in a deformable molecular chain subject to a constant electric field. By using as an example a homogeneous polynucleotide chain, it is shown that the system under consideration can exhibit complicated dynamical behaviour: when subject to field intensities less than a certain critical value, a soliton exhibits oscillations as a whole, while at field intensities exceeding this threshold, the soliton becomes a breather that oscillates. It is shown that the motion of a charge in a deformable chain is infinite, which in contrast to that in a rigid chain. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Keywords: 71.20.Rv Polymers and organic compounds, 72.80.Le Polymers; organic compounds (including organic semiconductors), (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1140/epjb/e2007-00045-3

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