Dilatonic monopoles and ''hairy'' black holes
Yves Brihaye (U. Mons, Belgium), Betti Hartmann (U. Oldenburg,, Germany), Jutta Kunz (U. Oldenburg, Germany)
TL;DR
This paper investigates how the presence of a massless dilaton field affects the properties and existence domain of gravitating monopoles and non-abelian black holes within SU(2) Einstein-Yang-Mills-Higgs theory, revealing that their solution space diminishes as dilaton coupling increases.
Contribution
It introduces the study of dilaton effects on non-abelian monopoles and black holes, identifying the critical solutions as Einstein-Maxwell-dilaton configurations.
Findings
Existence domain shrinks with higher dilaton coupling
Critical solutions are Einstein-Maxwell-dilaton solutions
Dilatonic effects influence black hole and monopole properties
Abstract
We study gravitating monopoles and non-abelian black holes of SU(2) Einstein-Yang-Mills-Higgs theory coupled to a massless dilaton. The domain of existence of these solutions decreases with increasing dilaton coupling constant. The critical solutions of this system are Einstein-Maxwell-dilaton solutions.
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