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A new solution for a generalized cosmological wormhole

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arxiv 2312.07736 v1 pith:G423D3CE submitted 2023-12-12 gr-qc astro-ph.CO

Daniela Pérez , Mário Raia Neto This is my paper · ORCID
classification gr-qcastro-ph.CO
keywords cosmologicalwormholecosmicsolutionthroatconditionmodeltimes
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We find a new exact solution to Einstein field equations that represents a cosmological wormhole embedded in a flat Friedmann-Lema\^itre-Robertson-Walker universe. The new metric is a generalization of a previous cosmological wormhole solution found by Kim. We explicitly show that the flaring out condition is satisfied at the throat at all cosmic times; in addition, the null energy condition is violated at the throat regardless of the background cosmological model; thus, the spacetime geometry presented here describes a wormhole coupled to the cosmic dynamics that exists at all cosmic times and whose throat remains open in any cosmological model.

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Cited by 1 Pith paper

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  1. Outgoing electromagnetic flux from rotating wormholes

    gr-qc 2024-11 reject novelty 6.0 of 10

    A rotating Damour-Solodukhin wormhole with a specific, assumed magnetic field can produce a Poynting flux comparable to that of a Kerr black hole.

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