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Hawking Radiation from Squashed Kaluza-Klein Black Holes -- A Window to Extra Dimensions --

Hideki Ishihara·Jiro Soda
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Abstract

We explore the obsevability of extra dimensions through 5-dimensional squashed Kaluza-Klein black holes residing in the Kaluza-Klein spacetime. With the expectation that the Hawking radiation reflects the 5-dimensional nature of the squashed horizon, we study the Hawking radiation of a scalar field in the squashed black hole background. As a result, we show that the luminosity of Hawking radiation tells us the size of the extra dimension, namely, the squashed Kaluza-Klein black holes open a window to extra dimensions.

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Hideki Ishihara, Jiro Soda. 2007-02-22. Hawking Radiation from Squashed Kaluza-Klein Black Holes -- A Window to Extra Dimensions --. https://doi.org/10.1103/physrevd.76.064022

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