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arXiv 1107.2847hep-th
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五维规范理论与环面上的紧化

Five-dimensional gauge theory and compactification on a torus

Babak Haghighat, Stefan Vandoren

摘要:

我们研究五维极小超对称规范理论紧化的环面下降到三维,并嵌入到弦/M-理论使用几何工程。库仑分支上的模空间是一个超凯勒空间,它具有模变换性质。我们确定了度规的单圈修正,并证明了它们可以被解释为IIB型弦论中的世界面和D1-膜瞬子。此外,我们分析了瞬时修正来自孤立子BPS磁弦包裹在环面。特别是,我们展示了如何计算的路径积分的零模式从配分函数的M5膜,或使用2D/4D对应,从配分函数的N=4 SYM理论在Hirzebruch表面。

英文摘要:

We study five-dimensional minimally supersymmetric gauge theory compactified on a torus down to three dimensions, and its embedding into string/M-theory using geometric engineering. The moduli space on the Coulomb branch is hyperkaehler equipped with a metric with modular transformation properties. We determine the one-loop corrections to the metric and show that they can be interpreted as worldsheet and D1-brane instantons in type IIB string theory. Furthermore, we analyze instanton corrections coming from the solitonic BPS magnetic string wrapped over the torus. In particular, we show how to compute the path-integral for the zero-modes from the partition function of the M5 brane, or, using a 2d/4d correspondence, from the partition function of N=4 SYM theory on a Hirzebruch surface.

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