Topological violation of global symmetries in quantum gravity

研究成果: Article査読

6 被引用数 (Scopus)

抄録

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 compactification of a p-form gauge field. Our topological construction is motivated by the brane/black-brane correspondence, brane instantons, and an idea that virtual black branes of a simple kind may be realized by surgery on spacetime manifolds.

本文言語English
論文番号36
ジャーナルJournal of High Energy Physics
2021
9
DOI
出版ステータスPublished - 2021 9月

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

フィンガープリント

「Topological violation of global symmetries in quantum gravity」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル