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Wormholes and masses for Goldstone bosons
There exist non-trivial stationary points of the Euclidean action for an axion particle minimally coupled to Einstein gravity, dubbed wormholes. They explicitly break the continuos global shift symmetry of the axion in a non-perturbative way, and generate an effective potential that may compete with...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2017
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| Acceso en línea: | https://dx.doi.org/10.1007/JHEP02(2019)136 http://cds.cern.ch/record/2274056 |