Some open questions in axion theory

Prateek Agrawal, Kim V. Berghaus, JiJi Fan, Anson Hook, Gustavo Marques-Tavares, Tom Rudelius

Read on arXiv

arXiv

2203.08026

Date

2022-03-15

Frontier

Theory Frontier (TF)

Topical groups

Submitted by

JiJi Fan

Abstract

This white paper collects some open questions in several different aspects of axion theories. The questions are related to quantization of axion couplings, axion-magnetic monopole systems, axions in quantum gravity theory, axion string/domain wall systems, and thermal friction from axion couplings. They demonstrate many opportunities for axion theory, which call for more studies.