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Traversable Wormholes in General Relativity

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arxiv 2106.05034 v4 pith:6QNM5WCL submitted 2021-06-09 gr-qc astro-ph.HEhep-th

classification gr-qcastro-ph.HEhep-th
keywords throatmattersolutionswormholefieldsgravitationaltraversablewithout
verification ladder T0 review T1 audit T2 compute T3 formal
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In [J. Blazquez-Salcedo, C. Knoll, E. Radu, Phys. Rev. Lett. 126 (2021) no.10, 101102] asymptotically flat traversable wormhole solutions were obtained in the Einstein-Dirac-Maxwell theory without using phantom matter. The normalizable numerical solutions found therein require a peculiar behavior at the throat: the mirror symmetry relatively the throat leads to the nonsmoothness of gravitational and matter fields. In particular, one must postulate changing of the sign of the fermionic charge density at the throat, requiring coexistence of particle and antiparticles without annihilation and posing a membrane of matter at the throat with specific properties. Apparently this kind of configuration could not exist in nature. We show that there are wormhole solutions, which are asymmetric relative the throat and endowed by smooth gravitational and matter fields, thereby being free from all the above problems. This indicates that such wormhole configurations could also be supported in a realistic scenario.

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Forward citations

Cited by 5 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. 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.

  4. Nonlocal gravity in a proper tetrad frame: traversable wormholes

    gr-qc 2025-01 conditional novelty 6.0 of 10

    Static, spherically symmetric traversable wormholes are built in revised Deser-Woodard nonlocal gravity by reconstructing the theory's distortion function from chosen wormhole metrics.

  5. Study of Wormhole in $f(Q)$ gravity with some dark energy models

    gr-qc 2025-07 reject novelty 2.0 of 10

    Three wormhole models are constructed in linear f(Q) gravity using varying Chaplygin, generalized Chaplygin, and varying barotropic equations of state, all of which violate the null energy condition at the throat.

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