arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.04661hep-th
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5D BPS箭筒和KK塔架

5D BPS Quivers and KK Towers

Zhihao Duan, Dongwook Ghim, Piljin Yi

摘要:

我们探讨BPS颤动D=5理论,紧凑的圆和几何设计在当地的卡-丘3倍,许多已知的机器导致(精致)指数失败,由于微调的超势。对于阿贝尔箭图,计数减少到几何的,但技术上具有挑战性的$L^2$上同调被证明是必不可少的明智的BPS光谱。我们提供了一个数学定理来解决这个困难,但是对于非阿贝尔箭图,上同调方法本身就失败了,因为相关的波函数本质上是规范理论的。对于规范多重态的Cartan部分,它没有穿越墙壁,我们诉诸于D 0的图片和重建整个KK塔。我们还进行数值检查,使用多中心库仑例程,与一个简单的假设上的不变量,并将其扩展到电BPS状态的弱耦合室。最后,我们对已知的Donaldson-Thomas不变量以及如何从这些不变量中读取$L^2$索引进行了评论。

英文摘要:

We explore BPS quivers for D=5 theories, compactified on a circle and geometrically engineered over local Calabi-Yau 3-folds, for which many of known machineries leading to (refined) indices fail due to the fine-tuning of the superpotential. For Abelian quivers, the counting reduces to a geometric one, but the technically challenging $L^2$ cohomology proved to be essential for sensible BPS spectra. We offer a mathematical theorem to remedy the difficulty, but for non-Abelian quivers, the cohomology approach itself fails because the relevant wavefunctions are inherently gauge-theoretical. For the Cartan part of gauge multiplets, which suffers no wall-crossing, we resort to the D0 picture and reconstruct entire KK towers. We also perform numerical checks using a multi-center Coulombic routine, with a simple hypothesis on the quiver invariants, and extend this to electric BPS states in the weak coupling chamber. We close with a comment on known Donaldson-Thomas invariants and on how $L^2$ index might be read off from these.

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