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arXiv · 1404.2093

A new type of localized fast moving electronic excitations in molecular chains

A. N. Korshunova·V. D. Lakhno
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Abstract

It is shown that in a Holstein molecular chain placed in a strong longitudinal electric field some new types of excitations can arise. This excitations can transfer a charge over large distance (more than 1000 nucleotide pairs) along the chain retaining approximately their shapes. Excitations are formed only when a strong electric field either exists or quickly arises under especially preassigned conditions. These excitations transfer a charge even in the case when Holstein polarons are practically immobile. The results obtained are applied to synthetic homogeneous PolyG/PolyC DNA duplexes. They can be also provide the basis for explanation of famous H.W. Fink and C. Schönenberger experiment on long-range charge transfer in DNA.

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A. N. Korshunova, V. D. Lakhno. 2014-04-08. A new type of localized fast moving electronic excitations in molecular chains. https://doi.org/10.1016/j.physe.2014.02.025

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