Open AccessПоляронный перенос заряда в однородной Poly G/ Poly C-цепочке в модели Пейрарда-Бишопа-Холстейна в постоянном электрическом поле
Author(s) -
А.Н. Коршунова,
В.Д. Лахно
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.09.49686.397-19
Subject(s) - electric field , charge (physics) , polaron , intensity (physics) , physics , nonlinear system , homogeneous , constant (computer programming) , field (mathematics) , chain (unit) , condensed matter physics , quantum mechanics , statistical physics , electron , mathematics , computer science , pure mathematics , programming language
The numerical experiments which demonstrate the possibility of charge transfer in a homogeneous Poly G / Poly C DNA chain in the constant electric field have been carried out. As a model, which describes the dynamics of a DNA molecule, was considered the nonlinear Peyrard–Bishop–Holstein model. It is shown that the polaron can move along the chain at a constant velocity over long distances for small values of electric field intensity. With an increase in the value of the electric field intensity the uniform motion of the charge is not observed, the charge goes into an oscillatory mode of motion with Bloch oscillations.