Phys. Rev. E 65, 016609 (2001) [6 pages]Interplay of nonlinearity and geometry in a DNA-related, Klein-Gordon model with long-range dipole-dipole interactionReceived 12 July 2001; published 21 December 2001 Most of the studies on mathematical models of DNA are limited to next neighbor interaction. However, the coupling between base pairs is thought to be caused by dipole interaction, and, when the DNA strand is bent, the distances between base pairs become shorter, therefore the interactions with distant base pairs have to be taken into account. In this paper we analyze the existence and stability of breathers, i.e., localized oscillations in a simple model of bent DNA with long-range dipole interaction. Breathers have been suggested as precursors of the denaturation bubble. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.65.016609
DOI:
10.1103/PhysRevE.65.016609
PACS:
63.20.Ry, 63.20.Pw, 63.50.+x, 87.10.+e
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