Wormhole solutions with a complex ghost scalar field and their instability

2018

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DOI 10.1103/physrevd.97.024002
Data confidence 70 medium
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Abstract

We study compact configurations with a nontrivial wormholelike spacetime topology supported by a complex ghost scalar field with a quartic self-interaction. For this case, we obtain regular asymptotically flat equilibrium solutions possessing reflection symmetry. We then show their instability with respect to linear radial perturbations.