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2006-07-20 - Article/Dans un journal avec peer-review - Anglais - 32 page(s)

Brihaye Yves , Hartmann Betti, Radu Eugen, Stelea C., "Cosmological monopoles and non-abelian black holes" in Nuclear Physics B, 763, 1-2, 115-146

  • Edition : Elsevier Science, Amsterdam (The Netherlands)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique théorique et mathématique (DI1210)
  • Unités de recherche UMONS : Physique théorique et mathématique (S814)
Texte intégral :

Abstract(s) :

(Anglais) We discuss magnetic monopole solutions of the Einstein–Yang–Mills–Higgs equations with a positive cosmological constant. These configurations approach asymptotically the de Sitter spacetime background and exist only for a nonzero Higgs potential. We find that the total mass of the solutions within the cosmological horizon is finite. However, their mass evaluated by using the surface counterterm method outside the cosmological horizon at early/late time infinity generically diverges. Magnetic monopole solutions with finite mass and non-integer charge exist however in a truncation of the theory with a vanishing Higgs field. Both solutions with a regular origin and cosmological black holes are studied, special attention being paid to the computation of the global charges.

Notes :
  • (Anglais) e-print: gr-qc/0607078
Identifiants :
  • DOI : 10.1016/j.nuclphysb.2006.11.011