On the correlation functions of fully frustrated two-dimensional Ising systems

On the correlation functions of fully frustrated two-dimensional Ising systems
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完全受抑二维伊辛系统的相关函数

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发表时间:
1982
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通讯作者:
I. Peschel
I. Peschel
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文献类型:
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作者:
I. Peschel

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通过将三角形反铁磁体、Villain模型和Union-Jack模型映射到量子XY链上,我们给出了一种简单的方法,得到了这些模型在阻挫点处自旋关联函数衰减的指数η=1/2.巴克斯特模型的一个类似过程导致了η的非普适值。
By mapping the triangular antiferromagnet, the Villain model and the Union-Jack model on the quantumXY-chain we show a simple way to obtain the exponent η=1/2 for the decay of the spin-correlation function at the frustration points of these models. A similar procedure for the Baxter model leads to non-universal values of η.