Higher-group symmetries and weak gravity conjecture mixing

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