Energetics of holes trapped in DNA
Mesoscale and Nanoscale Physics
2007-05-23 v1
Abstract
We report on our study of the electronic properties of guanine traps in the DNA surrounded by adenines. We have shown that for a typical range of DNA parameters, formation of the bound state of two holes at the same guanine trap is possible for the GGG and GGGG traps if the hole-hole interaction is weak, which can be achieved for the DNA in solutions. The origin of the two-hole bound state is the competition between the Coulomb repulsion and the phonon mediated attraction between the holes. For the hole-phonon coupling constant two holes will be at the same trap if the on-site hole-hole repulsion energy is eV.
Cite
@article{arxiv.cond-mat/0507179,
title = {Energetics of holes trapped in DNA},
author = {V. Apalkov and Tapash Chakraborty},
journal= {arXiv preprint arXiv:cond-mat/0507179},
year = {2007}
}
Comments
4 pages, 4 figures