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

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.