Dynamical behavior of the four-body transverse Ising model with random bonds and fields

AUTOR(ES)

Boechat, Beatriz, Cordeiro, Claudette, Bonfim, O. F. de Alcantara, Florencio, J., Barreto, F.C. Sá

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2000-12

RESUMO

We study the effect of random bonds and fields on the dynamical behavior of the one-dimensional transverse Ising model with four-spin interactions. We consider finite chains of increasing size to determine the time-dependent correlation function and the longitudinal relaxation function of the infinite chain. In this fully disordered system we observe a crossover from a collective modetype of dynamics to that of a central regime.

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