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arXiv 0905.1924cond-mat.stat-mechhep-thmath-phmath.MPmath.QAnlin.SI
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手征Potts模型的对偶性和对称性

Duality and Symmetry in Chiral Potts Model

Shi-shyr Roan

摘要:

在一般的$N$态手征Potts模型中发现了Ising型对偶,即N=2时平面伊辛模型的Kramers-Wannier对偶.这种二元性将低温下(小$k'$)的一个手征波茨模型的光谱和本征向量与高温下($k'^{-1}$)的另一个手征波茨模型的光谱和本征向量联系起来。在对偶格点上建立了$τ^{(2)}$ -模型和手征Potts模型.借助于这种对偶关系,我们通过识别它们的本征态,精确地确定了齐次超可积手征Potts模型的Onsager-代数对称性与其自旋- $\frac{N-1}{2}$ XXZ链的$sl_2$ -圈-代数对称性之间的关系.

英文摘要:

We discover an Ising-type duality in the general $N$-state chiral Potts model, which is the Kramers-Wannier duality of planar Ising model when N=2. This duality relates the spectrum and eigenvectors of one chiral Potts model at a low temperature (of small $k'$) to those of another chiral Potts model at a high temperature (of $k'^{-1}$). The $τ^{(2)}$-model and chiral Potts model on the dual lattice are established alongside the dual chiral Potts models. With the aid of this duality relation, we exact a precise relationship between the Onsager-algebra symmetry of a homogeneous superintegrable chiral Potts model and the $sl_2$-loop-algebra symmetry of its associated spin-$\frac{N-1}{2}$ XXZ chain through the identification of their eigenstates.

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