Abstract
With an attempt to describe DNA dynamics in a more realistic way, we introduce an extended Peyrard-Bishop (PB) model which takes into account the possible alternation between AT and GC pairs. The out-of-phase motion is then described by a set of coupled discrete differential equations which implies the existence of optical and acoustic modes. Through the semi-discrete approximation, a complex Ginzburg-Landau (CGL) equation describes the dynamics of the base pairs. It is shown that, the more probable DNA dynamics occurs the optical mode, since it has a deep influence in energy exchange and collision phenomena.
Original language | English |
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Pages (from-to) | 2201-2209 |
Number of pages | 9 |
Journal | Journal of Computational and Theoretical Nanoscience |
Volume | 5 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 1 2008 |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Computational Mathematics
- Electrical and Electronic Engineering