Nonlinear molecular excitations in a completely inhomogeneous DNA chain
arXiv:0807.2506 · doi:10.1016/j.physleta.2008.05.063
Abstract
We study the nonlinear dynamics of a completely inhomogeneous DNA chain which is governed by a perturbed sine-Gordon equation. A multiple scale perturbation analysis provides perturbed kink-antikink solitons to represent open state configuration with small fluctuation. The perturbation due to inhomogeneities changes the velocity of the soliton. However, the width of the soliton remains constant.
References in corpus (8)
- Helicoidal model for DNA opening
- Statistical Mechanics of Torque Induced Denaturation of DNA
- On the nonlinear dynamics of topological solitons in DNA
- Thermal denaturation of an helicoidal DNA model
- Perturbed soliton excitations in DNA molecular chain
- Bubble propagation in a helicoidal molecular chain
- A composite model for DNA torsion dynamics
- Kink stability, propagation, and length scale competition in the periodically modulated sine-Gordon equation