arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1801.09635math-phmath.MPnlin.SI
收藏

畴壁配分函数的泛函方法

The Functional Method for the Domain-Wall Partition Function

Jules Lamers

摘要:

我们回顾(代数)功能的方法设计的Galleas和进一步发展的Galleas和作者。我们首先用最简单的例子来解释这种方法:计算具有畴壁边界条件的六顶点模型的配分函数。该方法的核心在于配分函数的线性函数方程。在推导出这个方程之后,我们概述了它的分析。其结果是一个对称和形式的封闭表达式--或者等价地,多重积分公式--可以重写以恢复伊泽金行列式。特别注意与其他方法的关系。特别是,我们表明,Korepin-Izergin的方法可以恢复内的功能方法。我们评论的功能方法的适用范围,并审查它是如何适应技术上更复杂的例子,椭圆形的固体对固体模型域壁和反射结束。本文给出了Tsuchiya-Filali-Kitanine用行列式表示的后者的配分函数的新公式。我们的结果采取的形式与$2^L$条款具有椭圆域壁配分函数,这似乎是新的限制情况下的六顶点模型的交叉对称的总和。进一步采取合理的限制,我们恢复的表达式Frassek使用边界周长Bethe anomaly。

英文摘要:

We review the (algebraic-)functional method devised by Galleas and further developed by Galleas and the author. We first explain the method using the simplest example: the computation of the partition function for the six-vertex model with domain-wall boundary conditions. At the heart of the method lies a linear functional equation for the partition function. After deriving this equation we outline its analysis. The result is a closed expression in the form of a symmetrized sum - or, equivalently, multiple-integral formula - that can be rewritten to recover Izergin's determinant. Special attention is paid to the relation with other approaches. In particular we show that the Korepin--Izergin approach can be recovered within the functional method. We comment on the functional method's range of applicability, and review how it is adapted to the technically more involved example of the elliptic solid-on-solid model with domain walls and a reflecting end. We present a new formula for the partition function of the latter, which was expressed as a determinant by Tsuchiya--Filali--Kitanine. Our result takes the form of a 'crossing-symmetrized' sum with $2^L$ terms featuring the elliptic domain-wall partition function, which appears to be new also in the limiting case of the six-vertex model. Further taking the rational limit we recover the expression obtained by Frassek using the boundary perimeter Bethe ansatz.

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。

↑