## Abstract

We show that the transfer matrix of the A_{N-1}^(1) open spin chain with diagonal boundary fields has the symmetry U_q (SU(L)) x U_q (SU(N-L)) x U(1), as well as a ``duality'' symmetry which interchanges L and N - L. We exploit these symmetries to compute exact boundary S matrices in the regime with q real.

Original language | English |
---|---|

Pages (from-to) | 641–664 |

Number of pages | 24 |

Journal | Nuclear Physics B |

Volume | 530 |

Issue number | 3 |

DOIs | |

Publication status | Published - 19 Oct 1998 |

## Keywords

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

## Fingerprint

Dive into the research topics of 'Duality and quantum-algebra symmetry of the A_{N-1}

^{(1) }open spin chain with diagonal boundary fields'. Together they form a unique fingerprint.