Dilaton fields and event horizon

Details Dilaton fields and event horizon Dilaton fields and event horizon

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..189...29k&link_type=abstract

Physics Letters B, Volume 189, Issue 1-2, p. 29-33.

Physics

48

Scientific paper

The no-hair theorem precludes the existence of black holes with a scalar charge. We explicitly construct static spherically symmetric solutions of the Einstein equation in the presence of massless dilaton and gauge fieldsm relevant to higher-dimensional Kaluza-Klein and superstring theories. Except the special case of the wormhole solution, all non-trivial solutions contain naked singularities not covered by an event horizon. Time-dependent perturbation, however, shows the instability of these solutions, caused by the dilaton field.

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