Phantom black holes and sigma models

We construct static multicenter solutions of phantom Einstein-Maxwell-dilaton theory from null geodesics of the target space, leading to regular black holes without spatial symmetry for certain discrete values of the dilaton coupling constant. We also discuss the three-dimensional gravitating sigma...

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Veröffentlicht in:	Physical review. D 2011-06, Vol.83 (12), Article 124001
Hauptverfasser:	Azreg-Aïnou, Mustapha, Clément, Gérard, Fabris, Júlio C., Rodrigues, Manuel E.
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTROPHYSICS, COSMOLOGY AND ASTRONOMY AXIONS BLACK HOLES BOSON-EXCHANGE MODELS BOSONS CHEMICAL REACTIONS COUPLING CONSTANTS EINSTEIN-MAXWELL EQUATIONS ELEMENTARY PARTICLES EQUATIONS FIELD EQUATIONS FIELD THEORIES General Relativity and Quantum Cosmology GOLDSTONE BOSONS High Energy Physics - Theory KALUZA-KLEIN THEORY MATHEMATICAL MODELS MATHEMATICAL SOLUTIONS MOCKUP PARTICLE MODELS PERIPHERAL MODELS PHANTOMS Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES REDUCTION SIGMA MODEL SPACE STRUCTURAL MODELS SYMMETRY THREE-DIMENSIONAL CALCULATIONS TRANSFORMATIONS UNIFIED-FIELD THEORIES
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Zusammenfassung:	We construct static multicenter solutions of phantom Einstein-Maxwell-dilaton theory from null geodesics of the target space, leading to regular black holes without spatial symmetry for certain discrete values of the dilaton coupling constant. We also discuss the three-dimensional gravitating sigma models obtained by reduction of phantom Einstein-Maxwell, phantom Kaluza-Klein and phantom Einstein-Maxwell-dilaton-axion theories. In each case, we generate by group transformations phantom charged black hole solutions from a neutral seed.
ISSN:	1550-7998 2470-0010 0556-2821 1550-2368 2470-0029 1089-4918
DOI:	10.1103/PhysRevD.83.124001