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Spontaneously Broken $\bm{(-1)}$-Form U(1) Symmetries
by Daniel Aloni, Eduardo García-Valdecasas, Matthew Reece, Motoo Suzuki
Submission summary
| Authors (as registered SciPost users): | Eduardo Garcia Valdecasas |
| Submission information | |
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| Preprint Link: | scipost_202403_00019v1 (pdf) |
| Date submitted: | 2024-03-13 17:01 |
| Submitted by: | Garcia Valdecasas, Eduardo |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
Spontaneous breaking of symmetries leads to universal phenomena. We extend this notion to $(-1)$-form U(1) symmetries. The spontaneous breaking is diagnosed by a dependence of the vacuum energy on a constant background field $\theta$, which can be probed by the topological susceptibility. This leads to a reinterpretation of the Strong CP problem as arising from a spontaneously broken instantonic symmetry in QCD. We discuss how known solutions to the problem are unified in this framework and explore some, so far {\em unsuccessful}, attempts to find new solutions.
Current status:
In refereeing