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arXiv 0704.2229hep-th
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锥状奇点、双态瞬子和非微扰镜像对称

Conifold singularities, resumming instantons and non-perturbative mirror symmetry

Frank Saueressig, Stefan Vandoren

摘要:

我们确定了在Calabi-Yau锥点附近的IIB型紧化中的瞬子校正超多重模空间,在该点处两圈的尺寸收缩为零。我们证明了D1-瞬子解决了由世界面瞬子引起的锥状奇点。此外,通过对瞬子序列进行数字化,我们精确地再现了Ooguri和Vafa在IIA型方面获得的结果,其中膜瞬子校正了超多重态模空间。因此,我们的计算表明,镜像对称在弦耦合中保持非微扰。

英文摘要:

We determine the instanton corrected hypermultiplet moduli space in type IIB compactifications near a Calabi-Yau conifold point where the size of a two-cycle shrinks to zero. We show that D1-instantons resolve the conifold singularity caused by worldsheet instantons. Furthermore, by resumming the instanton series, we reproduce exactly the results obtained by Ooguri and Vafa on the type IIA side, where membrane instantons correct the hypermultiplet moduli space. Our calculations therefore establish that mirror symmetry holds non-perturbatively in the string coupling.

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