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arXiv · 2410.23355

Cheshire $θ$ terms, Aharonov-Bohm effects, and axions

Shi Chen·Aleksey Cherman·Gongjun Choi·Maria Neuzil
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Abstract

We discuss unusual $θ$ terms that can appear in field theories that allow global vortices. These `Cheshire $θ$ terms' induce Aharonov-Bohm effects for some particles that move around vortices. For example, a Cheshire $θ$ term can appear in QCD coupled to an axion and induces Aharonov-Bohm effects for baryons and leptons moving around axion strings.

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Shi Chen, Aleksey Cherman, Gongjun Choi, Maria Neuzil. 2024-12-05. Cheshire $θ$ terms, Aharonov-Bohm effects, and axions. https://arxiv.org/abs/2410.23355

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