Correlations in Random Ising Chains at Zero Temperature
arXiv:cond-mat/9403029 · doi:10.1088/0305-4470/27/9/015
Abstract
We present a general method to calculate the connected correlation function of random Ising chains at zero temperature. This quantity is shown to relate to the surviving probability of some one-dimensional, adsorbing random walker on a finite intervall, the size of which is controlled by the strength of the randomness. For different random field and random bond distributions the correlation length is exactly calculated.
15 pages, plain TEX, figures upon request, SZFKI-94-FI1