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DNA melting: A phase transition in one dimension

✍ Scribed by Michel Peyrard; Thierry Dauxois

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
984 KB
Volume
40
Category
Article
ISSN
0378-4754

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✦ Synopsis

We show that a one-dimensional system of particles coupled by nearest-neighbor anharmonic interactions and subjected to an on-site Morse potential, corresponding to a model originally developed for DNA melting, exhibits a first-order phase transition. This result is obtained by an exact treatment of the transfer integral operator, using two independent methods. It is confirmed by molecular dynamics simulations. We discuss the conditions that a one-dimensional system of particle with short-range interactions must fulfill to exhibit such a first-order transition.

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