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arXiv 1802.08853math-phcond-mat.stat-mechhep-thmath.MPnlin.SI
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六点反射代数II循环表示的转移矩阵谱

Transfer matrix spectrum for cyclic representations of the 6-vertex reflection algebra II

J. M. Maillet, G. Niccoli, B. Pezelier

摘要:

本文是文献[1]的直接延续,在文献[1]中,我们开始研究与Bazhanov-StroganovLax算子相关的三角6-顶点反射代数的循环表示的转移矩阵谱问题。在那里,我们解决了这个问题的情况下,其中一个K-矩阵描述的边界条件是三角形。本文考虑最一般的可积边界条件,即满足反射方程的最一般边界K-矩阵。频谱分析是通过实施分离变量(SoV)的方法。我们首先设计一个合适的规范变换,使我们能够把对应的最一般的边界条件的谱问题与另一个有一个边界K-矩阵的三角形形式。在这些设置中,可以沿着[1]中描述的方法的扩展来获得SoV分辨率。转移矩阵谱,然后完全其特征在于在一个给定的功能类的多项式方程的离散系统的解决方案,并相当于一组解决方案的模拟巴克斯特的T-Q功能方程。我们进一步描述了分离态的标积性质,包括转移矩阵的本征态。

英文摘要:

This article is a direct continuation of [1] where we begun the study of the transfer matrix spectral problem for the cyclic representations of the trigonometric 6-vertex reflection algebra associated to the Bazhanov-Stroganov Lax operator. There we addressed this problem for the case where one of the K-matrices describing the boundary conditions is triangular. In the present article we consider the most general integrable boundary conditions, namely the most general boundary K-matrices satisfying the reflection equation. The spectral analysis is developed by implementing the method of Separation of Variables (SoV). We first design a suitable gauge transformation that enable us to put into correspondence the spectral problem for the most general boundary conditions with another one having one boundary K-matrix in a triangular form. In these settings the SoV resolution can be obtained along an extension of the method described in [1]. The transfer matrix spectrum is then completely characterized in terms of the set of solutions to a discrete system of polynomial equations in a given class of functions and equivalently as the set of solutions to an analogue of Baxter's T-Q functional equation. We further describe scalar product properties of the separate states including eigenstates of the transfer matrix.

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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