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

Research output: Contribution to journal › Article › peer-review

34 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
Externally published	Yes

ASJC Scopus subject areas

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

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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.",

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AU - Mezincescu, L.

AU - Nepomechie, R. I.

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