Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-06-08
Phys.Lett.B646:183-188,2007
Physics
High Energy Physics
High Energy Physics - Theory
12 pages, 3 figures
Scientific paper
10.1016/j.physletb.2007.01.034
In this note we consider the spontaneous creation of the brane world in five-dimensional space with nondynamical external four-form field via spherically asymmetric bounce solution. We argue that spherically asymmetric bounce suggests several inequivalent directions of the time arrow upon the analytic continuation to the space-time with Lorentzian signature. It it shown that S-branes in the imaginary time emerge naturally upon the particular continuation.
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