The exact two-spinon longitudinal dynamical structure factor of the anisotropic XXZ model

@misc{castillo2020exacttwospinonlongitudinal,
      title={The exact two-spinon longitudinal dynamical structure factor of the anisotropic XXZ model},
      author={Isaac Pérez Castillo},
      year={2020},
      eprint={2005.10729},
      archivePrefix={arXiv},
      primaryClass={cond-mat.str-el},
      url={https://arxiv.org/abs/2005.10729},
}