arXiv:2203.08026·v1·High Energy Physics — Phenomenology
Some open questions in axion theory
Prateek Agrawal🇬🇧 · Kim V. Berghaus🇺🇸 · JiJi Fan🇺🇸 · Anson Hook🇺🇸 · Gustavo Marques-Tavares🇺🇸 · Tom Rudelius🇺🇸
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.
Comments: 12 pages, contribution to Snowmass 2021