Varying-alpha monopoles

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Menezes, J (Autor) Outra; Avelino, PP (Autor) FCUP; C. dos Santos (Autor) FCUP

Revista

Título: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 72 Nº 9

ISSN: 1550-7998

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 8 Citações

Outras Informações

ID Authenticus: P-000-0T0

DOI: 10.1103/physrevd.72.103504

Abstract (EN): We study static magnetic monopoles in the context of varying-alpha theories and show that there is a group of models for which the 't Hooft-Polyakov solution is still valid. Nevertheless, in general static magnetic monopole solutions in varying-alpha theories depart from the classical 't Hooft-Polyakov solution with the electromagnetic energy concentrated inside the core seeding spatial variations of the fine-structure constant. We show that Equivalence Principle constraints impose tight limits on the allowed variations of alpha induced by magnetic monopoles which confirms the difficulty to generate significant spatial variation of the fine-structure constant found in previous works. This is true even in the most favorable case where magnetic monopoles are the source for these variations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8