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arXiv 0706.2114hep-th
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N=2超引力和弱引力猜想中的刚性极限

Rigid Limit in N=2 Supergravity and Weak-Gravity Conjecture

Tohru Eguchi, Yuji Tachikawa

摘要:

在刚性极限附近,我们用全纯方法分析了N=2的超引力与Yang-Mills系统的耦合。我们发现在g M_{pl}附近一般出现一个新的质量标度,其中g是规范耦合常数,M_{pl}是普朗克标度.这与最近提出的弱引力猜想是一致的。我们还研究了规范理论预势嵌入超引力的尺度依赖性。

英文摘要:

We analyze the coupled N=2 supergravity and Yang-Mills system using holomorphy, near the rigid limit where the former decouples from the latter. We find that there appears generically a new mass scale around g M_{pl} where g is the gauge coupling constant and M_{pl} is the Planck scale. This is in accord with the weak-gravity conjecture proposed recently. We also study the scale dependence of the gauge theory prepotential from its embedding into supergravity.

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