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Order of the Phase Transition in Models of DNA Thermal Denaturation

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 03 Jul 2000Embargo end date: 01 Jan 2000 Greece English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 85, pages 6-9 (issn: 0031-9007, eissn: 1079-7114, Copyright policy )
Authors: Theodorakopoulos, Nikos; Dauxois, Thierry; Peyrard, Michel;

doi: 10.1103/physrevlett.85.6 , 10.48550/arxiv.cond-mat/0004487

pmid: 10991145

arXiv: cond-mat/0004487

handle: 10442/7552

Order of the Phase Transition in Models of DNA Thermal Denaturation

Abstract

We examine the behavior of a model which describes the melting of double-stranded DNA chains. The model, with displacement-dependent stiffness constants and a Morse on-site potential, is analyzed numerically; depending on the stiffness parameter, it is shown to have either (i) a second-order transition with "nu_perpendicular" = - beta = 1, "nu_parallel" = gamma/2 = 2 (characteristic of short range attractive part of the Morse potential) or (ii) a first-order transition with finite melting entropy, discontinuous fraction of bound pairs, divergent correlation lengths, and critical exponents "nu_perpendicular" = - beta = 1/2, "nu_parallel" = gamma/2 = 1.

4 pages of Latex, including 4 Postscript figures. To be published in Phys. Rev. Lett

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Greece
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Keywords

Hot Temperature, Statistical Mechanics (cond-mat.stat-mech), Physics, Entropy, FOS: Physical sciences, Biomolecules (q-bio.BM), DNA, Nucleic Acid Denaturation, Quantitative Biology - Biomolecules, Models, Chemical, Biological Physics (physics.bio-ph), FOS: Biological sciences, Thermodynamics, Φυσική, Physics - Biological Physics, Condensed Matter - Statistical Mechanics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
104
Top 10%
Top 1%
Top 10%
Green
bronze