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北美退伍军人节(Veterans Day),12 日无更新
arXiv 0912.5253hep-th
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几种Gepner模型的自由场表示和几何

Free-field Representations and Geometry of some Gepner models

S. E. Parkhomenko

摘要:

$k^{K}$ Gepner模型的几何结构,其中$k+2=2K$是由称为“$bc\bet\gm$“-系统的自由场表示研究的。利用这种表示,它直接表明,该模型的内部部门是由Landau-Ginzburg $\mathbb{C}^{K}/\mathbb{Z}_{2K}$ -orbifold。然后我们考虑边缘反手征-手征算子对轨道折叠的变形。通过对变形态空间的全纯扇区的分析,我们证明了它具有复曲面流形的手征de Rham复结构,其中复曲面日期由一定的费米子屏蔽流给出.它允许相关的Gepner模型变形的边缘算子的$σ$ -模型实现为双覆盖的$\mathbb{P}^{K-1}$沿某些子流形的分支。

英文摘要:

The geometry of $k^{K}$ Gepner model, where $k+2=2K$ is investigated by free-field representation known as "$bc\bet\gm$"-system. Using this representation it is shown directly that internal sector of the model is given by Landau-Ginzburg $\mathbb{C}^{K}/\mathbb{Z}_{2K}$-orbifold. Then we consider the deformation of the orbifold by marginal anti-chiral-chiral operator. Analyzing the holomorphic sector of the deformed space of states we show that it has chiral de Rham complex structure of some toric manifold, where toric dates are given by certain fermionic screening currents. It allows to relate the Gepner model deformed by the marginal operator to the $σ$-model on CY manifold realized as double cover of $\mathbb{P}^{K-1}$ with ramification along certain submanifold.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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