Kinetic model for a polmer in one dimension

Autor:	Martins, Jose Arthur, Stilck, Jurgen F.
Jazyk:	angličtina
Rok vydání:	1995
Předmět:	Física da matéria condensada Polimerizacao [Polímeros] Transformações de fase Modelo de ising Mecânica estatística
Zdroj:	Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______3056::2fbf42acec53f9b6c944afd7d47bf147 Zobrazit plný text záznamu