Simplified Calculation of Boundary S Matrices
High Energy Physics - Theory
2011-07-19 v1 Exactly Solvable and Integrable Systems
solv-int
Abstract
The antiferromagnetic Heisenberg spin chain with N spins has a sector with N=odd, in which the number of excitations is odd. In particular, there is a state with a single one-particle excitation. We exploit this fact to give a simplified derivation of the boundary S matrix for the open antiferromagnetic spin-1/2 Heisenberg spin chain with diagonal boundary magnetic fields.
Keywords
Cite
@article{arxiv.hep-th/9705187,
title = {Simplified Calculation of Boundary S Matrices},
author = {Anastasia Doikou and Luca Mezincescu and Rafael I. Nepomechie},
journal= {arXiv preprint arXiv:hep-th/9705187},
year = {2011}
}
Comments
8 pages, LaTeX, no figures