Distributions of gaps and end-to-end correlations in random transverse-field Ising spin chains
Condensed Matter
2009-10-31 v1
Abstract
A previously introduced real space renormalization-group treatment of the random transverse-field Ising spin chain is extended to provide detailed information on the distribution of the energy gap and the end-to-end correlation function for long chains with free boundary conditions. Numerical data, using the mapping of the problem to free fermions, are found to be in good agreement with the analytic finite size scaling predictions.
Keywords
Cite
@article{arxiv.cond-mat/9802246,
title = {Distributions of gaps and end-to-end correlations in random transverse-field Ising spin chains},
author = {Daniel S. Fisher and A. P. Young},
journal= {arXiv preprint arXiv:cond-mat/9802246},
year = {2009}
}
Comments
12 pages revtex, 10 figures, submitted to Phys. Rev. B