https://doi.org/10.1140/epjc/s10052-014-3067-0
Regular Article - Theoretical Physics
Thin-shell wormholes supported by total normal matter
Department of Physics, Eastern Mediterranean University, Gazimağusa, Turkey
* e-mail: habib.mazhari@emu.edu.tr
Received:
11
March
2014
Accepted:
31
August
2014
Published online:
23
September
2014
The Zipoy–Voorhees–Weyl (ZVW) spacetime characterized by mass (
) and oblateness (
) is proposed in the construction of viable thin-shell wormholes (TSWs). A departure from spherical/cylindrical symmetry yields a positive total energy in spite of the fact that the local energy density may take negative values. We show that oblateness of the bumpy sources/black holes can be incorporated as a new degree of freedom that may play a role in the resolution of the exotic matter problem in TSWs. A small velocity perturbation reveals, however, that the resulting TSW is unstable.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
