arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1102.3462math-phcond-mat.stat-mechmath.AGmath.MP
收藏

Potts模型中相变的动力学研究

A motivic approach to phase transitions in Potts models

Paolo Aluffi, Matilde Marcolli

摘要:

我们描述了一种方法来研究的相变Potts模型的基础上估计的复杂性的轨迹的实零点的配分函数,计算类的Grothendieck环的仿射代数品种的消失的多变量Tutte多项式。我们给出了完全明确的计算的例子链的链接多边形和图形取代多边形与其对偶图。这些都是基于删除收缩公式的Grothendieck类和生成函数的分裂和加倍的边缘。

英文摘要:

We describe an approach to the study of phase transitions in Potts models based on an estimate of the complexity of the locus of real zeros of the partition function, computed in terms of the classes in the Grothendieck ring of the affine algebraic varieties defined by the vanishing of the multivariate Tutte polynomial. We give completely explicit calculations for the examples of the chains of linked polygons and of the graphs obtained by replacing the polygons with their dual graphs. These are based on a deletion-contraction formula for the Grothendieck classes and on generating functions for splitting and doubling edges.

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。

↑