Some Remarks on Gravitational Global Monopoles

Details Some Remarks on Gravitational Global Monopoles Some Remarks on Gravitational Global Monopoles

1999-08-11

arxiv.org/abs/gr-qc/9908038v1

Phys.Rev.Lett. 83 (1999) 5218-5221

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.83.5218

Using mainly analytical arguments, we derive the exact relation
$\eta_{max}=\sqrt{3/8\pi}$ for the maximal vacuum value of the Higgs field for
static gravitational global monopoles. For this value, the global monopole
bifurcates with the de Sitter solution obtained for vanishing Higgs field. In
addition, we analyze the stability properties of the solutions.

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