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Traversable wormholes in Einstein-Dirac-Maxwell theory

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arxiv 2010.07317 v2 pith:7SJYGX4D submitted 2020-10-14 gr-qc hep-th

Jose Luis Blázquez-Salcedo , Christian Knoll , Eugen Radu This is my paper · ORCID
classification gr-qchep-th
keywords einstein-dirac-maxwellfermionstheorytraversablewormholesasymptoticallyblackcharge
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abstract

We construct a specific example of a class of traversable wormholes in Einstein-Dirac-Maxwell theory in four spacetime dimensions, without needing any form of exotic matter. Restricting to a model with two massive fermions in a singlet spinor state, we show the existence of spherically symmetric asymptotically flat configurations which are free of singularities, representing localized states. These solutions satisfy a generalized Smarr relation, being connected with the extremal Reissner-Nordstr\"om black holes. They also possess a finite mass $M$ and electric charge $Q_e$, with $Q_e/M>1$. An exact wormhole solution with ungauged, massless fermions is also reported.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Obstructions to Traversable Wormholes in Einstein-Dirac Theory

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Traversable wormholes do not appear to exist as static, spherically symmetric solutions of the Einstein-Dirac system sourced by normalizable positive-frequency Dirac fields.

  2. Chaotic particle dynamics near a traversable wormhole throat

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Confined test particles near a wormhole throat show high-energy chaos coexisting with surviving KAM tori, in contrast to horizon-driven chaos in black holes.

  3. Multishell Dirac fermions in the Einstein-Dirac system

    gr-qc 2025-07 conditional novelty 6.0 of 10

    Multishell solutions of the spherically symmetric Einstein-Dirac system are constructed for 2, 6, 12, and 20 fermions.

  4. Dynamical evolution and stability of quantum corrected Schwarzschild black holes in semiclassical gravity

    gr-qc 2025-06 conditional novelty 6.0 of 10

    The static quantum corrected Schwarzschild wormhole is dynamically unstable: it expands in vacuum and collapses into an evaporating black hole when a small amount of matter is present.

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