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arXiv 1502.01966math-phmath.MP
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基于GL(3)的量子可积复合模型II。局部算子的形状因子

GL(3)-Based Quantum Integrable Composite Models. II. Form Factors of Local Operators

Stanislav Pakuliak, Eric Ragoucy, Nikita A. Slavnov

摘要:

本文研究了可由嵌套代数Bethe变换解且具有GL(3)-不变R-矩阵的可积模型。我们考虑一个复合模型,其中模型的总单值矩阵表示为两个部分单值矩阵的乘积。假设最后一个可以展开成关于逆谱参数的级数,我们在转移矩阵本征态的基础上计算局部算子的矩阵元。我们得到这些矩阵元素的行列式表示。因此,我们解决了弱意义下的逆散射问题。

英文摘要:

We study integrable models solvable by the nested algebraic Bethe ansatz and possessing the GL(3)-invariant R-matrix. We consider a composite model where the total monodromy matrix of the model is presented as a product of two partial monodromy matrices. Assuming that the last ones can be expanded into series with respect to the inverse spectral parameter we calculate matrix elements of the local operators in the basis of the transfer matrix eigenstates. We obtain determinant representations for these matrix elements. Thus, we solve the inverse scattering problem in a weak sense.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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