Mustapha Azreg-Ainou, Gerard Clement, Julio C. Fabris, Manuel E. Rodrigues. Phantom Black Holes and Sigma Models

Natural Sciences / Physics / Gravitation Theory (Relativity)

Submitted on: Sep 16, 2012, 16:01:00

Description: 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.

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