Maciá Barber, Enrique Alfonso2023-06-202023-06-202007-121098-012110.1103/PhysRevB.76.245123https://hdl.handle.net/20.500.14352/52101©2007 The American Physical Society. I warmly thank Alexander Voityuk for useful comments. I acknowledge M. V. Hernández for a critical reading of the manuscript. This work has been supported by the Universidad Complutense de Madrid through Project No. PR27/05- 14014-BSCH.In this work we consider the combined effect of helical structure and base-pair twist motion on charge transfer through duplex DNA at low temperatures. We present a fully analytical treatment of charge-lattice coupled dynamics in terms of nearest-neighbor tight-binding equations describing the propagation of the charge through an effective linear lattice for certain frequency values. The corresponding effective hopping terms include both helicoidal and dynamical effects in a unified way. Although base-pair motion generally reduces pi-pi stack overlapping, the coupling to certain normal modes gives rise to a significant improvement of the Landauer conductance.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.76.245123https://journals.aps.orgopen access538.9Charge-transportPoly(Da)-poly(Dt) DNADeoxyribonucleic-acidElectronic statesPolaron modelDouble-strandHole transferMoleculesPoly(Dg)-poly(Dc)ConductivityFísica de materialesFísica del estado sólido2211 Física del Estado Sólido