1991/12/04 by K. Lee, Kimyeong Lee, V. P. Nair +1 · 27 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th
paper · pdf · doi:10.1103/physrevd.45.2751
published as Phys.Rev. D45 (1992) 2751-2761 · (28 pages)
arxiv created 1991/12/04 · openalex publication_date 1992/04/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We study magnetically charged classical solutions of a spontaneously broken gauge theory interacting with gravity. We show that nonsingular monopole solutions exist only if the Higgs-field vacuum expectation value v is less than or equal to a critical value vcr which is of the order of the Planck mass. In the limiting case, the monopole becomes a black hole, with the region outside the horizon described by the critical Reissner-Nordstr"om solution. For v<vcr we find additional solutions which are singular at r=0 but which have this singularity hidden within a horizon. These have nontrivial matter fields outside the horizon, and may be interpreted as small black holes lying within a magnetic monopole. The nature of these solutions as a function of v and of the total mass Mand their relation to the Reissner-Nordstr"o solutions are discussed.