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arXiv 0812.3473hep-th
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第二类$\mathbb{Z}_{3}$准费米场论的格点模型

A lattice model for the second $\mathbb{Z}_{3}$ parafermionic field theory

Benoit Estienne

摘要:

第二个$\mathbb{Z}_{3}$仿费米共形理论与陪集结构$\frac{SU(2)_{k}\times SU(2)_{4}}{SU(2)_{k+4}} $相关联。基于仿射代数$B_1^{(1)}$的一级表示的模型融合得到的固-固可积晶格模型具有由这些共形理论描述的临界点。显式的玻尔兹曼权重值推导出这些模型,它表明,玻尔兹曼权重可以积极的频谱参数的一个特定的值,开辟了一条道路,最终数值模拟这些共形场论。远离临界,这些晶格模型描述了一个可积的,大量的扰动的相关领域$Ψ_{-2/3}^{\dagger}D_{1,3} $的仿费米共形理论。

英文摘要:

The second $\mathbb{Z}_{3}$ parafermionic conformal theories are associated with the coset construction $\frac{SU(2)_{k}\times SU(2)_{4}}{SU(2)_{k+4}} $. Solid-on-solid integrable lattice models obtained by fusion of the model based on level-1 representation of the affine algebra $B_1^{(1)}$ have a critical point described by these conformal theories. Explicit values for the Boltzmann weights are derived for these models, and it is shown that the Boltzmann weights can be made positive for a particular value of the spectral parameter, opening a way to eventual numerical simulations of these conformal field theories. Away from criticality, these lattice models describe an integrable, massive perturbation of the parafermionic conformal theory by the relevant field $Ψ_{-2/3}^{\dagger}D_{1,3} $.

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