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