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arXiv · 1807.04949

Directed polaron propagation in linear polypeptides induced by intramolecular vibrations and external electric pulses

Jingxi Luo·Bernard M. A. G. Piette
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Abstract

We study the propagation of $α$-helix polarons in a model describing the non-adiabatic interaction between an electron and a lattice of quantum mechanical oscillators at physiological temperature. We show that when excited by a sub-picosecond electric pulse, as induced by experimentally observed sub-picosecond charge separation, the polaron is displaced by up to hundreds of lattice sites before the electron becomes delocalised. We discuss biophysical implications of our results.

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Jingxi Luo, Bernard M. A. G. Piette. 2018-07-13. Directed polaron propagation in linear polypeptides induced by intramolecular vibrations and external electric pulses. https://doi.org/10.1103/physreve.98.012401

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