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arXiv 1502.04944math-phcond-mat.stat-mechhep-thmath.MP
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手征Potts模型的离散全纯性

Discrete Holomorphicity in the Chiral Potts Model

Yacine Ikhlef, Robert Weston

摘要:

利用量子群的准局域流构造了$Z(N)$手征Potts模型的格点赝费米子.我们发现,量子群电流的守恒导致扭曲的离散全纯(DH)条件的parafermion。在临界Fateev-Zamolodchikov点的parafermion是通常的,和DH条件与Rajabpour和Cardy以前发现的一致。远离临界点,我们表明,我们的扭曲DH条件可以理解为变形的晶格电流守恒条件的基本扰动共形场论在一般的$N\geq 3$和$N=2$伊辛的情况下。

英文摘要:

We construct lattice parafermions for the $Z(N)$ chiral Potts model in terms of quasi-local currents of the underlying quantum group. We show that the conservation of the quantum group currents leads to twisted discrete-holomorphicity (DH) conditions for the parafermions. At the critical Fateev-Zamolodchikov point the parafermions are the usual ones, and the DH conditions coincide with those found previously by Rajabpour and Cardy. Away from the critical point, we show that our twisted DH conditions can be understood as deformed lattice current conservation conditions for an underlying perturbed conformal field theory in both the general $N\geq 3$ and $N=2$ Ising cases.

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