Phys. Rev. Lett. 62, 2755–2758 (1989)Statistical mechanics of a nonlinear model for DNA denaturationReceived 19 December 1988; published in the issue dated 5 June 1989 We investigate the statistical mechanics of a simple lattice model for the denaturation of the DNA double helix. The model consists of two chains connected by Morse potentials representing the H bonds. We determine the temperature dependence of the interstrand separation and we show that a mechanism involving an energy localization analogous to self-focusing may initiate the denaturation. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.62.2755
DOI:
10.1103/PhysRevLett.62.2755
PACS:
87.10.+e, 03.40.Kf, 05.90.+m
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