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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...

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Detalles Bibliográficos
Autores principales: Alonso, Rodrigo, Urbano, Alfredo
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP02(2019)136
http://cds.cern.ch/record/2274056