Imperfect Axions

Abstract

In this contribution, I'll discuss two classes of effects--additional sources of CP violation and PQ breaking--that offer a slightly different take on axion physics. Both are tied to the idea that the axion solution to the strong CP problem might not be exact, hence the title ``Imperfect Axions''.

Comments: 6 pages, 2 figures. Contribution to the 2025 Electroweak session of the 59th Rencontres de Moriond