Direct calculation of the boundary S-matrix for the open Heisenberg chain

M. T. Grisaru; L. Mezincescu; R. I. Nepomechie

doi:10.1088/0305-4470/28/4/025

Direct calculation of the boundary S-matrix for the open Heisenberg chain

M. T. Grisaru, L. Mezincescu, R. I. Nepomechie

Physics

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35 Scopus citations

Abstract

We calculate the boundary S-matrix for the open antiferromagnetic spin- 1/2 isotropic Heisenberg chain with boundary magnetic fields. Our approach, which starts from the model's Bethe-ansatz solution, is an extension of the Korepin-Andrei-Destri method. Our result agrees with the boundary S-matrix for the boundary sine-Gordon model with beta ² to 8 pi and with 'fixed' boundary conditions.

Original language	English (US)
Article number	025
Pages (from-to)	1027-1045
Number of pages	19
Journal	Journal of Physics A: General Physics
Volume	28
Issue number	4
DOIs	https://doi.org/10.1088/0305-4470/28/4/025
State	Published - Dec 1 1995

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ASJC Scopus subject areas

Statistical and Nonlinear Physics
Physics and Astronomy(all)
Mathematical Physics

Cite this

Grisaru, M. T., Mezincescu, L., & Nepomechie, R. I. (1995). Direct calculation of the boundary S-matrix for the open Heisenberg chain. Journal of Physics A: General Physics, 28(4), 1027-1045. [025]. https://doi.org/10.1088/0305-4470/28/4/025

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10.1088/0305-4470/28/4/025