Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-09-29
Class.Quant.Grav.26:225002,2009
Physics
High Energy Physics
High Energy Physics - Theory
3 figures, minor including errors and typos corrected, and refs. added
Scientific paper
10.1088/0264-9381/26/22/225002
We study the possible types of the nucleation of vacuum bubbles. We classify vacuum bubbles in de Sitter background and present some numerical solutions. The thin-wall approximation is employed to obtain the nucleation rate and the radius of vacuum bubbles. With careful analysis we confirm that Parke's formula is also applicable to the large true vacuum bubbles. The nucleation of the false vacuum bubble in de Sitter background is also evaluated. The tunneling process in the potential with degenerate vacua is analyzed as the limiting cases of the large true vacuum bubble and false vacuum bubble. Next, we consider the pair creation of black holes in the background of bubble solutions. We obtain static bubble wall solutions of junction equation with black hole pair. The masses of created black holes are uniquely determined by the cosmological constant and surface tension on the wall. Finally, we obtain the rate of pair creation of black holes.
Lee Bum-Hoon
Lee Wonwoo
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