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Spinning a charged dilaton black hole
Kiyoshi Shiraishi
A charged dilaton black hole which possesses infinitesimal angular momentum is studied. We find that the gyromagnetic ratio of the dilaton black hole depends not only on the parame…
Effect of Self-Interaction on Vacuum Energy for Yang-Mills System in Kaluza-Klein Theory
Kiyoshi Shiraishi, Satoru Hirenzaki
We calculate the vacuum energy for Yang--Mills (YM) system in the background space-time , taking the effect of self-interaction of the YM fields into account. The c…
More on quantum kinks in gauge theories on
Takuya Maki, Kiyoshi Shiraishi
Quantum kinks in gauge theories on space-time are studied. To obtain the, explicit profile of the kinks, we calculated effective actions including derivative corre…
Extremal Black Holes and Strings in Linear Dilaton Vacua
Takuya Maki, Kiyoshi Shiraishi
Analytic solutions to low-energy string theory, which describe arbitrary numbers of extreme `black holes (strings)' in linear dilaton vacua, are found.
Vacuum polarization around a three-dimensional black hole
Kiyoshi Shiraishi, Takuya Maki
We calculate the Euclidean propagator for a conformally coupled massless scalar field in the background of the three-dimensional black hole. The expectation value $\langleφ^2\rangl…
Exact solutions for gravitational collapse with a dilaton field in arbitrary dimensions
Takuya Maki, Kiyoshi Shiraishi
We present time-dependent analytic solutions to the Einstein equations coupled with a dilaton (scalar) field. The background geometry for the solutions is a product of an N-dimensi…