Magnetization dynamics in clean and disordered spin-1 XXZ chains

@article{Richter2019MagnetizationDI,
  title={Magnetization dynamics in clean and disordered spin-1 XXZ chains},
  author={Jonas Richter and Niklas Casper and W. Brenig and R. Steinigeweg},
  journal={Physical Review B},
  year={2019},
  volume={100},
  pages={144423}
}
We study spin transport in the one-dimensional anisotropic S = 1 Heisenberg model. Particular emphasis is given to dynamics at infinite temperature, where current autocorrelations and spatio-temporal correlation functions are obtained by means of an efficient pure-state approach based on the concept of typicality. Our comprehensive numerical analysis unveils that high-temperature spin transport is diffusive in the easy-axis regime for strong exchange anisotropies. This finding is based on the… Expand
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