Charge Transfer by Polarons in a Homogeneous Poly G/Poly C-Chain Subjected to a Constant Electric Field in Terms of the Peyrard–Bishop–Holstein Model

• Published in: Technical physics Vol. 65; no. 9; pp. 1467 - 1474
• Main Authors: Korshunova, A. N., Lakhno, V. D.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-09-2020; Springer; Springer Nature B.V
• Subjects: Analysis; Biopolymers Dynamics; Chains; Charge transfer; Classical and Continuum Physics; Electric fields; Field strength; Numerical analysis; Physics; Physics and Astronomy; Polarons
• ISSN: 1063-7842; 1090-6525
• DOI: 10.1134/S1063784220090200

Numerical experiments based on the Peyrard–Bishop–Holstein model have been conducted to demonstrate the possibility of charge transfer by polarons in the homogeneous
Poly G
/
Poly C
-chain of DNA subjected to a constant electric field. It has been shown that a polaron in this model can travel large distances along the chain with a constant velocity if the electric field is weak. The charge motion ceases to be uniform with an increase in field strength: the charge starts executing Bloch oscillations.