# Topological violation of global symmetries in quantum gravity

@article{Yonekura2021TopologicalVO, title={Topological violation of global symmetries in quantum gravity}, author={Kazuya Yonekura}, journal={Journal of High Energy Physics}, year={2021} }

Abstract
We discuss a topological reason why global symmetries are not conserved in quantum gravity, at least when the symmetry comes from compactification of a higher form symmetry. The mechanism is purely topological and does not require any explicit breaking term in the UV Lagrangian. Local current conservation does not imply global charge conservation in a sum over geometries in the path integral. We explicitly consider the shift symmetry of an axion-like field which originates from the…

## 11 Citations

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