Maxwell viscoelastic dynamics of the DNA in the THz range

Details Maxwell viscoelastic dynamics of the DNA in the THz range Maxwell viscoelastic dynamics of the DNA in the THz range

2011-11-02

arxiv.org/abs/1111.0413v1

Physics

Condensed Matter

Soft Condensed Matter

8 pages

Scientific paper

The attenuation of phonon modes of the DNA is due to the exchange of water molecules adsorbed by a molecule of DNA and the bulk solvent. Using Maxwell's mechanism of relaxation and a simple lattice model of the DNA, we show that the attenuation tends to a constant value for phonon frequencies larger than the inverse residence time of water molecules. We come to the conclusion that in the THz range the attenuation could be small enough to allow the propagation of the phonon modes.

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