Dilaton fields and event horizon

T. Koikawa, Motohiko Yoshimura

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume189
Issue number1-2
DOIs
Publication statusPublished - Apr 30 1987
Externally publishedYes

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event horizon
horizon
naked singularities
hair
Einstein equations
string theory
theorems
scalars
perturbation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Dilaton fields and event horizon. / Koikawa, T.; Yoshimura, Motohiko.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 189, No. 1-2, 30.04.1987, p. 29-33.

Research output: Contribution to journalArticle

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