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arXiv 1402.5580hep-th
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A-型ALE空间中带F项的规范线性西格玛模型

Gauged Linear Sigma Model with F-term for A-type ALE Space

Tetsuji Kimura, Masaya Yata

摘要:

我们构造了另一个${\mathcal N}=(4,4)$规范线性西格玛模型的$A_N$型ALE空间。在我们的结构中,ALE空间的环面数据是明显的。由于$SU(2)_R$对称性,F项自动确定。环面数据,支配的ALE空间的凯勒结构,嵌入到$U(1)$收费的收费超多重。F项也是确定ALE空间复杂结构的必然条件。在IR极限下,我们得到了$A_N$型ALE空间的Kähler势。我们还发现${\mathbb Z}_{N+1}$轨道对称性的起源在$A_N$型ALE空间的奇异极限。在一种特殊情况下,我们再现了$A_1$型ALE空间的Kähler势的一种显式形式,即,江口-汉森空间

英文摘要:

We construct yet another ${\mathcal N}=(4,4)$ gauged linear sigma model for the $A_N$-type ALE space. In our construction the toric data of the ALE space are manifest. Due to the $SU(2)_R$ symmetry, the F-term is automatically determined. The toric data, which govern the Kähler structures of the ALE space, are embedded into $U(1)$ charges of charged hypermultiplets. The F-term is also inevitable to determine the complex structures of the ALE space. In the IR limit, we obtain the Kähler potential of the $A_N$-type ALE space. We also find the origin of the ${\mathbb Z}_{N+1}$ orbifold symmetry in the singular limit of the $A_N$-type ALE space. In a special case, we reproduce an explicit form of the Kähler potential of the $A_1$-type ALE space, i.e., the Eguchi-Hanson space.

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