Defect wormhole: A traversable wormhole without exotic matter

Abstract

We present a traversable-wormhole solution of the gravitational field equation of General Relativity without need of exotic matter (exotic matter can, for example, have negative energy density and vanishing isotropic pressure). Instead of exotic matter, the solution relies on a 3-dimensional "spacetime defect" characterized by a locally vanishing metric determinant.

20 pages, 5 figures, v8: published version

References in corpus (5)

• Gravitational Lensing by Wormholes
• Light curves of light rays passing through a wormhole
• A novel gravitational lensing feature by wormholes
• Comparison of spacetime defects which are homeomorphic but not diffeomorphic
• Vacuum-defect wormholes and a mirror world

Cited by in corpus (7)

• A topologically charged four-dimensional wormhole and the energy conditions
• Geodesics motion of test particles around Schwarzschild-Klinkhamer wormhole with topological defects and gravitational lensing
• Vacuum-defect wormholes and a mirror world
• Complex degenerate metrics in general relativity: a covariant extension of the Moore-Penrose algorithm
• Smooth metrics can hide thin shells
• Linearized Stability of Harada Thin-Shell Wormholes
• Light propagation and quasinormal modes of a topologically charged Schwarzschild-Klinkhamer wormhole