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NON-UNIQUENESS, COUNTERROTATION, AND NEGATIVE HORIZON MASS OF EINSTEIN–MAXWELL–CHERN–SIMONS BLACK HOLES

2006/10/06 by Jutta Kunz, JUTTA KUNZ, Francisco Navarro-Lerida +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Pulsars and Gravitational Waves Research #gr-qc #hep-th

paper · pdf · doi:10.1142/s0217732306021864

published as Mod.Phys.Lett.A21:2621-2636,2006 · 15 pages, 16 figures, MPLA style, invited review for Modern Physics Letters A

arxiv created 2006/10/06 · openalex publication_date 2006/11/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Stationary black holes in five-dimensional Einstein–Maxwell–Chern–Simons theory possess surprising properties. When considering the Chern–Simons coefficient λ as a parameter, two critical values of λ appear: the supergravity value λ SG = 1, and the value λ = 2. At λ = 1, supersymmetric black holes with vanishing horizon angular velocity, but finite angular momentum exist. As λ increases beyond λ SG a rotational instability arises, and counterrotating black holes appear, whose horizon rotates in the opposite sense to the angular momentum. Thus supersymmetry is associated with the borderline between stability and instability. At λ = 2, rotating black holes with vanishing angular momentum emerge. Beyond λ = 2, black holes may possess a negative horizon mass, while their total mass is positive. Charged rotating black holes with vanishing gyromagnetic ratio appear, and black holes are no longer uniquely characterized by their global charges.

Citations