Einstein-Yang-Mills solutions in higher dimensional de Sitter spacetime

Details Einstein-Yang-Mills solutions in higher dimensional de Sitter spacetime Einstein-Yang-Mills solutions in higher dimensional de Sitter spacetime

2006-10-17

arxiv.org/abs/gr-qc/0610087v2

Phys.Rev.D75:024022,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, 8 figures

Scientific paper

10.1103/PhysRevD.75.024022

We consider particle-like and black holes solutions of the Einstein-Yang-Mills system with positive cosmological constant in d>4 spacetime dimensions. These configurations are spherically symmetric and present a cosmological horizon for a finite value of the radial coordinate, approaching asymptotically the de Sitter background. In the usual Yang--Mills case we find that the mass of these solutions, evaluated outside the cosmological horizon at future/past infinity generically diverges for d>4. Solutions with finite mass are found by adding to the action higher order gauge field terms belonging to the Yang--Mills hierarchy. A discussion of the main properties of these solutions and their differences from those to the usual Yang-Mills model, both in four and higher dimensions is presented.

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