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Topological Origin of the Phase Transition in a Model of DNA Denaturation

Paolo Grinza, Alessandro Mossa

Published 2003-09-29, updated 2004-04-19Version 2

The hypothesis that phase transitions originate from some topological change of the critical level hypersurface of the potential energy receives direct evident support by our study of the Bishop--Peyrard model of DNA thermal denaturation.

Comments: 8 pages, 1 figure, RevTex 4; v2: minor changes in the text
Journal: Phys. Rev. Lett. 92, 158102 (2004)
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