Diffusive transport in spin-1 chains at high temperatures
Strongly Correlated Electrons
2009-11-10 v1 Statistical Mechanics
Abstract
We present a numerical study on the spin and thermal conductivities of the spin-1 Heisenberg chain in the high temperature limit, in particular of the Drude weight contribution and frequency dependence. We use the Exact Diagonalization and the recently developed microcanonical Lanczos method; it allows us a finite size scaling analysis by the study of significantly larger lattices. This work, pointing to a diffusive rather than ballistic behavior is discussed with respect to other recent theoretical and experimental studies.
Cite
@article{arxiv.cond-mat/0405281,
title = {Diffusive transport in spin-1 chains at high temperatures},
author = {J. Karadamoglou and X. Zotos},
journal= {arXiv preprint arXiv:cond-mat/0405281},
year = {2009}
}