Ambiguity of black hole entropy in loop quantum gravity (2005)
Tamaki, Takashi, Nomura, Hidefumi
We reexmine some proposals of black hole entropy in loop quantum gravity (LQG) and consider a new possible choice of the Immirzi parameter which has not been pointed out so far. We also discuss that...
Continuous area spectrum in regular black hole (2005)
Nomura, Hidefumi, Tamaki, Takashi
We investigate highly damped quasinormal modes of regular black hole coupled to nonlinear electrodynamics. Using the WKB approximation combined with complex-integration technique, we show that the...
The Fate of a Five-Dimensional Rotating Black Hole via Hawking Radiation (2005)
Nomura, Hidefumi, Yoshida, Shijun, Tanabe, Makoto, Maeda, Kei-ichi
We study the evolution of a five-dimensional rotating black hole emitting scalar field radiation via the Hawking process for arbitrary initial values of the two rotation parameters $a$ and $b$. It is...
The universal area spectrum in single-horizon black holes (2004)
Tamaki, Takashi, Nomura, Hidefumi
We investigate highly damped quasinormal mode of single-horizon black holes motivated by its relation to the loop quantum gravity. Using the WKB approximation, we show that the real part of the...