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arXiv 2005.12935hep-th
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6d $\mathcal N=(1,0)$ 理论在 $S^1$ 上的反常与 F 理论推论

6d $\mathcal N=(1,0)$ anomalies on $S^1$ and F-theory implications

Pierre Corvilain

AI总结:

本文证明 6d $\mathcal N=(1,0)$ 理论在圆上紧致化的纯规范反常由 5d 单圈场依赖 Chern-Simons 项刻画,并据此说明 F 理论紧致化自动无反常,进而从预势读出规范耦合的量子修正。

摘要:

我们证明,6d $\mathcal N=(1,0)$ 理论在圆上紧致化后的纯规范反常,由 5d 有效理论中单圈出现的场依赖 Chern-Simons 项所捕捉。当且仅当反常被抵消时,这些项才为零。为得到这一结果,关键在于以一种保持 6d 洛伦兹不变性的方式积掉有质量 Kaluza-Klein 模式;常用的 zeta 函数正规化并不充分。由于此类场依赖 Chern-Simons 项不会出现在 M 理论在三维流形上的约化中,因此只要 M/F 对偶可用,六维 F 理论紧致化就自动无反常。随后,在经典 M 理论约化的 5d $\mathcal N=1$ 预势与一个无反常理论的单圈圆紧致化之间发现了完美匹配。最后,从该势中我们读出规范耦合函数的量子修正。

英文摘要:

We show that the pure gauge anomalies of 6d $\mathcal N=(1,0)$ theories compactified on a circle are captured by field-dependent Chern-Simons terms appearing at one-loop in the 5d effective theories. These terms vanish if and only if anomalies are canceled. In order to obtain this result, it is crucial to integrate out the massive Kaluza-Klein modes in a way that preserves 6d Lorentz invariance; the often-used zeta-function regularization is not sufficient. Since such field-dependent Chern-Simons terms do not arise in the reduction of M-theory on a threefold, six-dimensional F-theory compactifications are automatically anomaly free, whenever the M/F-duality can be used. A perfect match is then found between the 5d $\mathcal N=1$ prepotentials of the classical M-theory reduction and one-loop circle compactification of an anomaly free theory. Finally, from this potential, we read off the quantum corrections to the gauge coupling functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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