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False Vacuum Decay With Gravity in Non-Thin-Wall Limit
Uchida Gen, Misao Sasaki
We consider a wave-function approach to the false vacuum decay with gravity and present a new method to calculate the tunneling amplitude under the WKB approximation. The result ag…
Brane-world creation and black holes
Jaume Garriga, Misao Sasaki
An inflating brane-world can be created from ``nothing'' together with its Anti-de Sitter (AdS) bulk. The resulting space-time has compact spatial sections bounded by the brane. Du…
The Einstein Equations on the 3-Brane World
Tetsuya Shiromizu, Kei-ichi Maeda, Misao Sasaki
We carefully investigate the gravitational equations of the brane world, in which all the matter forces except gravity are confined on the 3-brane in a 5-dimensional spacetime with…
Black hole formation in the Friedmann universe: Formulation and computation in numerical relativity
Masaru Shibata, Misao Sasaki
We study formation of black holes in the Friedmann universe. We present a formulation of the Einstein equations under the constant mean curvature time-slicing condition. Our formal…
CMB in Open Inflation
Andrei Linde, Misao Sasaki, Takahiro Tanaka
The possibility to have an infinite open inflationary universe inside a bubble of a finite size is one of the most interesting realizations extensively discussed in the literature.…