Bloch oscillations of a soliton in a molecular chain |
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Authors: | V D Lakhno A N Korshunova |
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Institution: | (1) Institute of Mathematical Problems of Biology, Russian Academy of Sciences, Pushchino, Moscow Region, Russian Federation |
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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. |
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Keywords: | 71 20 Rv Polymers and organic compounds 72 80 Le Polymers organic compounds (including organic semiconductors) |
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