Nonlinear molecular excitations in a completely inhomogeneous DNA chain

Details Nonlinear molecular excitations in a completely inhomogeneous DNA chain Nonlinear molecular excitations in a completely inhomogeneous DNA chain

2008-07-16

arxiv.org/abs/0807.2506v1

Phys. Lett. A 372 (2008) 5144-5151

Nonlinear Sciences

Pattern Formation and Solitons

Scientific paper

10.1016/j.physleta.2008.05.063

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.

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