New perturbative solutions of the Kerr-Newman dilatonic black hole field equations

Details New perturbative solutions of the Kerr-Newman dilatonic black hole field equations New perturbative solutions of the Kerr-Newman dilatonic black hole field equations

1996-06-12

arxiv.org/abs/hep-th/9606069v1

Phys.Rev.D55:814-825,1997

Physics

High Energy Physics

High Energy Physics - Theory

Revtex, 27 pages

Scientific paper

10.1103/PhysRevD.55.814

This work describes new perturbative solutions to the classical, four-dimensional Kerr--Newman dilaton black hole field equations. Our solutions do not require the black hole to be slowly rotating. The unperturbed solution is taken to be the ordinary Kerr solution, and the perturbation parameter is effectively the square of the charge-to-mass ratio $(Q/M)^2$ of the Kerr--Newman black hole. We have uncovered a new, exact conjugation (mirror) symmetry for the theory, which maps the small coupling sector to the strong coupling sector ($\phi \to -\phi$). We also calculate the gyromagnetic ratio of the black hole.

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