Correlation amplitude for the XXZ spin chain in the disordered regime
arXiv:cond-mat/9809254 · doi:10.1103/PhysRevB.59.11163
Abstract
We proposed an analytical expression for the amplitude defining the long distance asymptotic of the correlation function <Ï^z_k Ï^z_{k+n}>.
5 pages, harvmac.tex, one epsf figure