Abstract
We show that the transfer matrix of the A(1)N - 1 open spin chain with diagonal boundary fields has the symmetry Uq(SU(l)) × Uq(SU(N - l)) × U(1), as well as a "duality" symmetry which maps l ↔ N - l. We exploit these symmetries to compute exact boundary S-matrices in the regime with q real.
Original language | English (US) |
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Pages (from-to) | 641-664 |
Number of pages | 24 |
Journal | Nuclear Physics B |
Volume | 530 |
Issue number | 3 |
DOIs | |
State | Published - Oct 19 1998 |
Keywords
- Bethe ansatz
- Boundary S-matrix
- Boundary Yang-Baxter equation
- Duality
- Integrable spin chain
- Quantum group
ASJC Scopus subject areas
- Nuclear and High Energy Physics