TY - JOUR
T1 - Dilaton fields and event horizon
AU - Koikawa, T.
AU - Yoshimura, M.
PY - 1987/4/30
Y1 - 1987/4/30
N2 - 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.
AB - 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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U2 - 10.1016/0370-2693(87)91264-0
DO - 10.1016/0370-2693(87)91264-0
M3 - Article
AN - SCOPUS:0001361549
SN - 0370-2693
VL - 189
SP - 29
EP - 33
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -