## Abstract

We compute by Bethe Ansatz both bulk and boundary hole scattering matrices for the critical A_{N-1}^(1) quantum spin chain. The bulk S matrix coincides with the soliton S matrix for the A_{N-1}^(1) Toda field theory with imaginary coupling. We verify our result for the boundary S matrix using a generalization of the Ghoshal-Zamolodchikov boundary crossing relation.

Original language | English |
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Pages (from-to) | 121–131 |

Number of pages | 11 |

Journal | Physics Letters B |

Volume | 462 |

Issue number | 1-2 |

DOIs | |

Publication status | Published - 9 Sept 1999 |

## Keywords

- hep-th
- nlin.SI
- solv-int

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