Thin-shell wormholes supported by total normal matter

Abstract

The Zipoy-Voorhees-Weyl (ZVW) spacetime characterized by mass ($M$) and oblateness ($\delta$) is proposed in the construction of viable thin-shell wormholes (TSWs). Departure from spherical / cylindrical symmetry yields positive total energy in spite of the fact that 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 role in the resolution of the exotic matter problem in TSWs. Small velocity perturbation reveals, however, that the resulting TSW is unstable.

5 pages, 5 figures, final version published in EPJC

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Cited by in corpus (9)

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• Flare-out conditions in static thin-shell wormholes
• 2+1-dimensional traversable wormholes supported by positive energy
• 3+1-dimensional thin-shell wormhole with deformed throat can be supported by normal matter
• Hypocycloidal throat for 2+1-dimensional thin-shell wormholes
• Thermodynamic Stability of a Schwarzschild Thin-Shell Wormhole
• Magnetic Morris-Thorne wormhole in 2+1-dimensions
• Thin-shell wormholes in 2+1-dimensional Einstein-Scalar Theory
• Note on a thin-shell wormhole in extremal Reissner-Nordström geometry