Phantom black holes and sigma models

Mustapha Azreg-Aïnou, Gérard Clément, Júlio C. Fabris, and Manuel E. Rodrigues
Phys. Rev. D 83, 124001 – Published 1 June 2011

Abstract

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.

  • Received 22 February 2011

DOI:https://doi.org/10.1103/PhysRevD.83.124001

© 2011 American Physical Society

Authors & Affiliations

Mustapha Azreg-Aïnou1,*, Gérard Clément2,†, Júlio C. Fabris3,4,‡, and Manuel E. Rodrigues2,3,§

  • 1Başkent University, Department of Mathematics, Bağlıca Campus, Ankara, Turkey
  • 2Laboratoire de Physique Théorique LAPTH (CNRS), B.P.110, F-74941 Annecy-le-Vieux cedex, France
  • 3Universidade Federal do Espírito Santo, Centro de Ciências Exatas-Departamento de Física, Avenida Fernando Ferrari, 514-Campus de Goiabeiras, CEP29075-910-Vitória/ES, Brazil
  • 4IAP, Institut d’Astrophysique de Paris, 98bis, Bd Arago-75014 Paris, France

  • *azreg@baskent.edu.tr
  • gclement@lapp.in2p3.fr
  • fabris@pq.cnpq.br
  • §esialg@gmail.com

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Issue

Vol. 83, Iss. 12 — 15 June 2011

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