Base pair dynamic assisted charge transport in DNA
E. I. Kats+*, V. V. Lebedev
+L. D. Landau Institute for Theoretical Physics RAS, 117940 Moscow, Russia
*Institut Laue-Langevin, BP 156 Grenoble, France
Department of Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
PACS: 87.14.Gg, 87.15.-v
An 1d model with time-dependent random hopping is proposed to
describe charge transport in DNA. It admits to investigate both
diffusion of electrons and their tunneling between different sites
in DNA. The tunneling appears to be strongly temperature-dependent.
Observations of a strong (exponential) as well as a weak distance
dependence of the charge transfer in DNA can be explained in the
framework of our model.