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arXiv 0704.0449hep-th
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Worldsheet瞬时数和挠率曲线,B部分:镜像对称

Worldsheet Instantons and Torsion Curves, Part B: Mirror Symmetry

Volker Braun, Maximilian Kreuzer, Burt A. Ovrut, Emanuel Scheidegger

摘要:

本文利用镜像对称性研究了具有Z_3 × Z_3 Wilson线的Calabi-Yau三重X中全纯有理曲线的计数问题。我们在[hep-th/0703182] A部分中发现,整同调群H_2(X,Z)= Z_3 + Z_3 + Z_3包含挠曲线。利用X的镜像上的B模型及其覆盖空间,我们计算了瞬子数。我们观察到X即使在量子水平上也是自镜像的。利用自镜像性质,我们得到了X上的完全前势,这是A部分结果的进一步改进。特别是,这产生了第一个例子,其中瞬子数取决于其同调类的扭转部分。另一个推论是三重X为镜像流形中挠子群的交换提供了一个非复曲面的例子。

英文摘要:

We apply mirror symmetry to the problem of counting holomorphic rational curves in a Calabi-Yau threefold X with Z_3 x Z_3 Wilson lines. As we found in Part A [hep-th/0703182], the integral homology group H_2(X,Z)=Z^3 + Z_3 + Z_3 contains torsion curves. Using the B-model on the mirror of X as well as its covering spaces, we compute the instanton numbers. We observe that X is self-mirror even at the quantum level. Using the self-mirror property, we derive the complete prepotential on X, going beyond the results of Part A. In particular, this yields the first example where the instanton number depends on the torsion part of its homology class. Another consequence is that the threefold X provides a non-toric example for the conjectured exchange of torsion subgroups in mirror manifolds.

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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