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arXiv math-ph/0503014math-phcond-mat.stat-mechhep-phhep-thmath.MP
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具有孤子非保持边界条件的开自旋链的解析Bethe Answer

Analytical Bethe Ansatz for open spin chains with soliton non preserving boundary conditions

D. Arnaudon, N. Crampe, A. Doikou, L. Frappat, E. Ragoucy

摘要:

我们提出了一个“代数处理”的解析Bethe anomalies开放的自旋链孤子非保留(SNP)边界条件。为了这个目的,我们引入抽象的monodromy和传递矩阵,提供了一个代数框架的分析贝特anastrophy。它使我们能够处理一个通用的gl(N)开放SNP自旋链上的每个网站上拥有任意的表示。结果,我们得到了贝特方程的充分普遍性。扭杨格尔方程有限维不可约表示的分类与转移矩阵特征值的计算直接相关。

英文摘要:

We present an ``algebraic treatment'' of the analytical Bethe ansatz for open spin chains with soliton non preserving (SNP) boundary conditions. For this purpose, we introduce abstract monodromy and transfer matrices which provide an algebraic framework for the analytical Bethe ansatz. It allows us to deal with a generic gl(N) open SNP spin chain possessing on each site an arbitrary representation. As a result, we obtain the Bethe equations in their full generality. The classification of finite dimensional irreducible representations for the twisted Yangians are directly linked to the calculation of the transfer matrix eigenvalues.

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