Journal Title

Physical Review B

Publication Date

6-1-2000

Abstract

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.

Subjects

Ising model; Quantum theory

Publication Information

Copyright 2000 American Physical Society. The original published version of this article may be found at http://dx.doi.org/10.1590/S0103-97332000000400010.

DOI

10.1590/S0103-97332000000400010

Peer-Reviewed

Yes

Document Type

Journal Article

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