Simplified calculation of boundary S matrices

Anastasia Doikou; Luca Mezincescu; Rafael I. Nepomechie

doi:10.1088/0305-4470/30/15/005

Simplified calculation of boundary S matrices

Anastasia Doikou, Luca Mezincescu, Rafael I. Nepomechie

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

17 Citations (Scopus)

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.

Original language	English
Journal	Journal of Physics A: Mathematical and General
Volume	30
Issue number	15
DOIs	https://doi.org/10.1088/0305-4470/30/15/005
Publication status	Published - 7 Aug 1997

Keywords

hep-th
nlin.SI
solv-int

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10.1088/0305-4470/30/15/005

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title = "Simplified calculation of boundary S matrices",

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 = "hep-th, nlin.SI, solv-int",

author = "Anastasia Doikou and Luca Mezincescu and {I. Nepomechie}, Rafael",

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AU - Doikou, Anastasia

AU - Mezincescu, Luca

AU - I. Nepomechie, Rafael

N1 - 8 pages, LaTeX, no figures

PY - 1997/8/7

Y1 - 1997/8/7

N2 - 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.

AB - 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.

KW - hep-th

KW - nlin.SI

KW - solv-int

U2 - 10.1088/0305-4470/30/15/005

DO - 10.1088/0305-4470/30/15/005

M3 - Article

SN - 0305-4470

VL - 30

JO - Journal of Physics A: Mathematical and General

JF - Journal of Physics A: Mathematical and General

IS - 15

ER -

Simplified calculation of boundary S matrices

Abstract

Keywords

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