1999/08/31 by V. Dzhunushaliev, H. -J. Schmidt
Physics and Astronomy · #gr-qc
published as Grav.Cosmol. 5 (1999) 187-190 · 8 pages, REVTeX, no figures
arxiv created 1999/08/31 · arxiv updated 2009/11/30
A regular vacuum solution in 5D gravity on the principal bundle with the U(1) structural group is proposed as a 4D wormhole. This solution has two null hypersurfaces where an interchange of the sign of some 5D metric components happens. For a 4D observer living on the base of this principal bundle this is a wormhole with two asymptotically flat Lorentzian (Euclidean) spacetimes connected by a Euclidean (Lorentzian) throat. The 4D Lorentzian observer sees these two null hypersurfaces as electric charges.