Direct calculation of breather S matrices

Anastasia Doikou; Rafael I. Nepomechie

doi:10.1088/0305-4470/32/20/301

Direct calculation of breather S matrices

Anastasia Doikou, Rafael I. Nepomechie

Physics

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

15 Scopus citations

Abstract

We formulate a systematic Bethe ansatz approach for computing bound-state ('breather') S matrices for integrable quantum spin chains. We use this approach to calculate the breather boundary S matrix for the open X X Z spin chain with diagonal boundary fields. We also compute the soliton boundary S matrix in the critical regime.

Original language	English (US)
Pages (from-to)	3663-3680
Number of pages	18
Journal	Journal of Physics A: Mathematical and General
Volume	32
Issue number	20
DOIs	https://doi.org/10.1088/0305-4470/32/20/301
State	Published - May 21 1999

ASJC Scopus subject areas

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

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abstract = "We formulate a systematic Bethe ansatz approach for computing bound-state ('breather') S matrices for integrable quantum spin chains. We use this approach to calculate the breather boundary S matrix for the open X X Z spin chain with diagonal boundary fields. We also compute the soliton boundary S matrix in the critical regime.",

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