Spacetime Singularities in String and its Low Dimensional Effective Theory

Details Spacetime Singularities in String and its Low Dimensional Effective Theory Spacetime Singularities in String and its Low Dimensional Effective Theory

2009-01-18

arxiv.org/abs/0901.2676v4

Int.J.Mod.Phys.A26:273-300,2011

Physics

High Energy Physics

High Energy Physics - Theory

revtex4, 15 pages, 10 figures. Typos are corrected. Version to appear in Inter. J. Mod. Phys. A

Scientific paper

10.1142/S0217751X11051408

Spacetime singularities are studied in both the $D+d$-dimensional string theory and its $D$-dimensional effective theory, obtained by the Kaluza-Klein compactification. It is found that spacetime singularities in the low dimensional effective theory may or may not remain after lifted to the $D+d$-dimensional string theory, depending on particular solutions. It is also found that there exist cases in which spacetime singularities appearing in high/low dimensional spacetimes do not necessarily happen on the same surfaces.

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