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arXiv 2202.04655hep-th
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高阶群对称性与弱引力猜想混合

Higher-Group Symmetries and Weak Gravity Conjecture Mixing

Sami Kaya, Tom Rudelius

摘要:

在四维轴子电动力学中,$θF \wedge F$形式的陈-西蒙斯耦合导致背景规范场之间的高群全局对称性。同时,这种Chern-Simons耦合导致了轴子和规范场的弱引力猜想之间的混合,使得满足弱引力猜想的轴子弦的带电激发也将满足规范场的弱引力猜想。在本文中,我们认为这些更高群对称性和弱引力猜想混合现象是相互关联的。我们证明了这种关系可以扩展到5维、6维、7维、8维、9维和10维的超引力,因此更高维的超引力恰好被赋予了确保与突现的更高群对称性和弱引力猜想保持一致所需的结构。我们进一步指出,弱引力猜想的类似混合可以发生在两项陈-西蒙斯理论或具有动力学混合的理论中,尽管这里与更高群对称性的联系更加脆弱,因此对有效场论的约束也不那么尖锐。

英文摘要:

In four-dimensional axion electrodynamics, a Chern-Simons coupling of the form $θF \wedge F$ leads to a higher-group global symmetry between background gauge fields. At the same time, such a Chern-Simons coupling leads to a mixing between the Weak Gravity Conjectures for the axion and the gauge field, so that the charged excitations of a Weak Gravity Conjecture-satisfying axion string will also satisfy the Weak Gravity Conjecture for the gauge field. In this paper, we argue that these higher-group symmetries and this phenomenon of Weak Gravity Conjecture mixing are related to one another. We show that this relationship extends to supergravities in 5, 6, 7, 8, 9, and 10 dimensions, so higher-dimensional supergravity is endowed with precisely the structure needed to ensure consistency with emergent higher-group symmetries and with the Weak Gravity Conjecture. We further argue that a similar mixing of Weak Gravity Conjectures can occur in two-term Chern-Simons theories or in theories with kinetic mixing, though the connection with higher-group symmetries here is more tenuous, and accordingly the constraints on effective field theory are not as sharp.

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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