Abstract
The open critical XXZ spin chain with a general right boundary and a trivial diagonal left boundary is considered. Within this framework we propose a simple computation of the exact generic boundary S-matrix (with diagonal and non-diagonal entries), starting from the `bare' Bethe ansatz equations. Our results coincide with the ones obtained by Ghoshal and Zamolodchikov, after assuming suitable identifications of the bulk and boundary parameters.
Original language | English |
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Pages (from-to) | 4144–4150 |
Number of pages | 7 |
Journal | Physics Letters A |
Volume | 372 |
Issue number | 23 |
DOIs | |
Publication status | Published - 2 Jun 2008 |
Keywords
- math-ph
- cond-mat.stat-mech
- hep-th
- math.MP
- nlin.SI