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本文考虑Kagome晶格上的混合自旋模型,运用decimation和对偶变换,证明它等价于一个八顶角模型。由八顶角模型的自由费密近似解给出了该模型的自由能及临界条件的近似表达式。In this paper, we consider a Kagome-lattise mixed-spin model and show that it is equivalent to an eight-vertex model via decimation and duality transformation. According to the free-fermion approximate solution of the eight-vertex model, the approximate expressions are given for the free energy and critical condition of the model.
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