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 math-ph/0609074math-phcond-mat.stat-mechhep-thmath.MPphysics.comp-ph
收藏

伊辛模型形状因子的完整性

Holonomy of the Ising model form factors

S. Boukraa, S. Hassani, J. -M. Maillard, B. M. McCoy, W. P. Orrick, N. Zenine

摘要:

我们研究了伊辛模型的两点对角相关函数$ C(N,N)$,提出了一个指数和形状因子展开的积分表示,不同于已知的扩展吴,McCoy,特雷西和Barouch。我们扩展这种扩展,加权,由一个变量$λ$,$j$粒子的贡献,$ f^{(j)}_{N,N}$的权力。相应的$ λ$扩展的两点对角相关函数,$ C(N,N; λ)$,示出,对于任意的$λ$,是一个解决方案的sigma形式的Painlev{é} VI方程介绍的Jimbo和Miwa。线性微分方程的形状因子$ f^{(j)}_{N,N}$得到,并示出有一个"俄罗斯娃娃“嵌套,和分解的微分算子作为一个直接和运营商等效的椭圆积分$ E$的微分算子的对称权力。每个$ f^{(j)}_{N,N}$用椭圆积分$ E$和$ K$多项式表示。这些微分算子的标度极限打破了直和结构,但没有打破“俄罗斯娃娃”结构。以前的$ λ$ -扩展,$ C(N,N; λ)$,对于挑选出的值$ λ= \cos(πm/n)$($m, n$整数),也是线性微分方程的解。这些解决方案Painlevé VI实际上是代数函数,与模曲线。

英文摘要:

We study the Ising model two-point diagonal correlation function $ C(N,N)$ by presenting an exponential and form factor expansion in an integral representation which differs from the known expansion of Wu, McCoy, Tracy and Barouch. We extend this expansion, weighting, by powers of a variable $λ$, the $j$-particle contributions, $ f^{(j)}_{N,N}$. The corresponding $ λ$ extension of the two-point diagonal correlation function, $ C(N,N; λ)$, is shown, for arbitrary $λ$, to be a solution of the sigma form of the Painlev{é} VI equation introduced by Jimbo and Miwa. Linear differential equations for the form factors $ f^{(j)}_{N,N}$ are obtained and shown to have both a ``Russian doll'' nesting, and a decomposition of the differential operators as a direct sum of operators equivalent to symmetric powers of the differential operator of the elliptic integral $ E$. Each $ f^{(j)}_{N,N}$ is expressed polynomially in terms of the elliptic integrals $ E$ and $ K$. The scaling limit of these differential operators breaks the direct sum structure but not the ``Russian doll'' structure. The previous $ λ$-extensions, $ C(N,N; λ)$ are, for singled-out values $ λ= \cos(πm/n)$ ($m, n$ integers), also solutions of linear differential equations. These solutions of Painlevé VI are actually algebraic functions, being associated with modular curves.

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。

↑