Dynamic Monopoles and Spacetime Structure

Details Dynamic Monopoles and Spacetime Structure Dynamic Monopoles and Spacetime Structure

1995-12-28

arxiv.org/abs/gr-qc/9512046v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

2 pages, latex, uuencoded postscript figures; based on gr-qc/9512045, and presented at 1st RESCUE International Symposium THE

Scientific paper

According to previous work on magnetic monopoles, static regular solutions are nonexistent if the vacuum expectation value of the Higgs field $\eta$ is larger than a critical value $\eta_{{\rm cr}}$, which is of the order of the Planck mass. In order to understand the properties of monopoles for $\eta>\eta_{{\rm cr}}$, we investigate their dynamics numerically and classify those dynamical solutions into three types as follows. If $\eta$ is larger than another critical value $\eta_{{\rm inf}}~(>\eta_{{\rm cr}})$, a monopole inflates and a wormhole structure appears around it. In the case of $\eta_{{\rm cr}}<\eta<\eta_{{\rm inf}}$, inflation does not occur and the dynamics depend on the ratio of the Higgs self coupling constant $\lambda$ and the gauge coupling constant $e^2$: if $\lambda/e^2\stackrel{<}{\sim}1$, a monopole just shrinks and becomes a black hole; otherwise, a monopole approaches a stable configuration.

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