|Título||Kinetic model for a polmer in one dimension
Martins, Jose Arthur
Stilck, Jurgen F.
|Abstract||We consider a model for a directed polymer on a one-dimensional lattice of width 2, with attractive interactions between monomers that occupy first-neighbor sites on the lattice and are not consecutive along the chain. We show that this model is equivalent to the one-dimensional Ising model with first- and second-neighbor interactions. We study the kinetic behavior of the model in the region of the phase diagram where the ground state is not frustrated, using a Glauber ansatz for the time evolution of the configurations. In order to decouple the dynamical equations, we use the pair approximation. In this approximation, we show that the dynamical exponent of the model is a function of the ratio between second- and first-neighbor interaction strengths.
|Contido em||Physical Review. E, Statistical Physics, Plasmas, Fluids and Related Interdisciplinary Topics. New York. Vol. 52, no. 6 (Dec. 1995), p. 6508-6515
Fisica da materia condensada
Modelo de ising
Polímeros : Polimerizacao
Transformações de fase
|Tipo||Artigo de periódico
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