| Texto completo | |
| Autor(es): |
Belliard, Samuel
[1]
Número total de Autores: 1
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| Afiliação do(s) autor(es): | [1] Univ Cergy Pontoise, CNRS, Lab Phys Theor & Modelisat, UMR 8089, F-95302 Cergy Pontoise - France
Número total de Afiliações: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | Nuclear Physics B; v. 892, p. 1-20, MAR 2015. |
| Citações Web of Science: | 26 |
| Resumo | |
The modified algebraic Bethe ansatz, introduced by Cramp6 and the author {[}8], is used to characterize the spectral problem of the Heisenberg XXZ spin-1/2 chain on the segment with lower and upper triangular boundaries. The eigenvalues and the eigenvectors are conjectured. They are characterized by a set of Bethe roots with cardinality equal to N the length of the chain and which satisfies a set of Bethe equations with an additional term. The conjecture follows from exact results for small chains. We also present a factorized formula for the Bethe vectors of the Heisenberg XXZ spin-1/2 chain on the segment with two upper triangular boundaries. (C) 2015 The Author. Published by Elsevier B.V. (AU) | |
| Processo FAPESP: | 14/09832-1 - Ansatz de Bethe para fronteiras não-diagonais |
| Beneficiário: | Antonio Lima Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |