Generic boundary scattering in the open XXZ chain
Mathematical Physics
2010-04-08 v3 Statistical Mechanics
High Energy Physics - Theory
math.MP
Exactly Solvable and Integrable Systems
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.
Keywords
Cite
@article{arxiv.0711.0716,
title = {Generic boundary scattering in the open XXZ chain},
author = {Anastasia Doikou},
journal= {arXiv preprint arXiv:0711.0716},
year = {2010}
}
Comments
14 pages, Latex. Added comments and references. To appear in PLA