Numerical non-perturbative stationary vacuum ring wormhole solutions invariant under throat reflections, with slow-rotation M ~ J^2, fast-rotation J = M^2, and limits mimicking extremal Kerr.
Slowly rotating scalar field wormholes: the second order approximation
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abstract
We discuss rotating wormholes in general relativity with a scalar field with negative kinetic energy. To solve the problem, we use the assumption about slow rotation. The role of a small dimensionless parameter plays the ratio of the linear velocity of rotation of the wormhole's throat and the velocity of light. We construct the rotating wormhole solution in the second order approximation with respect to the small parameter. The analysis shows that the asymptotical mass of the rotating wormhole is greater than that of the non-rotating one, and the NEC violation in the rotating wormhole spacetime is weaker than that in the non-rotating one.
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gr-qc 3years
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Rotation enhances Breit-Wigner resonances in scalar wave transmission through Teo wormholes by trapping modes in the throat potential well.
Derives regular, horizon-free, asymptotically flat spacetimes for slowly rotating wormholes supported by radially varying string fluids and analyzes photon trajectories and circular orbits.
citing papers explorer
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Stationary generalizations for the vacuum ring wormhole
Numerical non-perturbative stationary vacuum ring wormhole solutions invariant under throat reflections, with slow-rotation M ~ J^2, fast-rotation J = M^2, and limits mimicking extremal Kerr.
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Resonant transmission of scalar waves through rotating traversable wormhole
Rotation enhances Breit-Wigner resonances in scalar wave transmission through Teo wormholes by trapping modes in the throat potential well.
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Slowly rotating traversable wormholes supported by radially varying string-fluid matter: From regular geometries to photon trajectories
Derives regular, horizon-free, asymptotically flat spacetimes for slowly rotating wormholes supported by radially varying string fluids and analyzes photon trajectories and circular orbits.