Scalar Kinks

H. J. de Vega; Luca Mezincescu; Rafael I. Nepomechie

doi:10.1142/S0217979294001469

Scalar Kinks

高能物理 - 理论 2015-06-26 v1 凝聚态物理

作者: H. J. de Vega , Luca Mezincescu , Rafael I. Nepomechie

在 arXiv 上查看 ↗ PDF ↗ DOI ↗

摘要

We determine the excitations and $S$ matrix of an integrable isotropic antiferromagnetic quantum spin chain of alternating spin 1/2 and spin 1. There are two types of gapless one-particle excitations: the usual spin 1/2 (``spinor'') kink, and a new spin 0 (``scalar'') kink. Remarkably, the scalar-spinor scattering is nontrivial, yet the spinor-spinor scattering is the same as if the scalar kinks were absent. Moreover, there is no scalar-scalar scattering.

关键词

spin chains spin systems higher spin theory

引用

@article{arxiv.hep-th/9402053,
  title  = {Scalar Kinks},
  author = {H. J. de Vega and Luca Mezincescu and Rafael I. Nepomechie},
  journal= {arXiv preprint arXiv:hep-th/9402053},
  year   = {2015}
}