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arXiv 2011.06083hep-th
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一个NUT电荷弱引力降维猜想

A NUT Charge Weak Gravity Conjecture from Dimensional Reduction

Sera Cremonini, Callum R. T. Jones, James T. Liu, Brian McPeak, Yuezhang Tang

摘要:

分析了黑洞弱引力猜想对5维Einstein-Maxwell理论四阶导数修正的限制。我们计算的渐近平坦的5d带电的解决方案,以及4D卡鲁扎-克莱因紧化的极值质量的领先的修正。从后者的WGC界限,解释为4D双音黑洞,被发现严格更强。由于磁引力光子电荷在5d中提升为NUT类电荷,我们认为WGC的逻辑也应该适用于这些拓扑电荷,并导致对纯引力理论的新约束。

英文摘要:

We analyze the constraints on four-derivative corrections to 5d Einstein-Maxwell theory from the black hole Weak Gravity Conjecture (WGC). We calculate the leading corrections to the extremal mass of asymptotically flat 5d charged solutions as well as 4d Kaluza-Klein compactifications. The WGC bounds from the latter, interpreted as 4d dyonic black holes, are found to be strictly stronger. As magnetic graviphoton charge lifts to a NUT-like charge in 5d, we argue that the logic of the WGC should apply to these topological charges as well and leads to new constraints on purely gravitational theories.

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