Breather Stability in One Dimensional Lattices with a Symmetric Morse Potential

H. Cortez, E. Drigo Filho, J.R. Ruggiero

Abstract


Harmonic one dimensional lattice with an additional Morse potential on site has been used to describe DNA macromolecules properties. We analyze a modification of this lattice introducing a symmetric Morse potential. The existence and stability of the breather is studied in this modified system. We obtain harmonic bifurcation and determine the effective mass of the mobile breather.

References


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DOI: https://doi.org/10.5540/tema.2008.09.02.0205

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Trends in Computational and Applied Mathematics

A publication of the Brazilian Society of Applied and Computational Mathematics (SBMAC)

 

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