Modified algebraic Bethe ansatz for XXZ chain on the segment - II - general cases

被引：63

作者：

Belliard, S. ^{[1
]}

Pimenta, R. A. ^{[2
]}

机构：

[1] Univ Cergy Pontoise, CNRS UMR 8089, Lab Phys Theor & Modelisat, F-95302 Cergy Pontoise, France

[2] Univ Fed Sao Carlos, Dept Fis, BR-13569905 Sao Carlos, SP, Brazil

来源：

NUCLEAR PHYSICS B | 2015年 / 894卷

基金：

巴西圣保罗研究基金会; 瑞典研究理事会;

关键词：

SPIN CHAIN; MODEL;

D O I：

10.1016/j.nuclphysb.2015.03.016

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The spectral problem of the Heisenberg XXZ spin-1/2 chain on the segment is investigated within a modified algebraic Bethe ansatz framework. We consider in this work the most general boundaries allowed by integrability. The eigenvalues and the eigenvectors are obtained. They are characterised 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. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：527 / 552

页数：26

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