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

Luo, J.; Piette, B.M.A.G.

doi:10.1103/physreve.98.012401

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

Luo, J.; Piette, B.M.A.G.

Authors

J. Luo

Professor Bernard Piette b.m.a.g.piette@durham.ac.uk
Professor

Abstract

We study the propagation of α-helix polarons in a model describing the nonadiabatic interaction between an electron and a lattice of quantum mechanical oscillators at physiological temperature. We show that when excited by a subpicosecond electric pulse, as induced by experimentally observed subpicosecond 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.

Citation

Luo, J., & Piette, B. (2018). Directed polaron propagation in linear polypeptides induced by intramolecular vibrations and external electric pulses. Physical Review E, 98(1), Article 012401. https://doi.org/10.1103/physreve.98.012401

Journal Article Type	Article
Acceptance Date	Jun 18, 2018
Online Publication Date	Jul 3, 2018
Publication Date	Jul 3, 2018
Deposit Date	Jul 10, 2018
Publicly Available Date	Jul 10, 2018
Journal	Physical review . E, Statistical, nonlinear, and soft matter physics
Print ISSN	2470-0045
Electronic ISSN	2470-0053
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	98
Issue	1
Article Number	012401
DOI	https://doi.org/10.1103/physreve.98.012401

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Copyright Statement
Reprinted with permission from the American Physical Society: Luo, J. & Piette, B. M. A. G. (2018). Directed polaron propagation in linear polypeptides induced by intramolecular vibrations and external electric pulses. Physical Review E 98(1): 012401 © (2018) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.