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Wormholes in de Sitter branes

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arxiv 1204.1291 v2 pith:OHPAA54W submitted 2012-04-05 gr-qc astro-ph.COhep-th

C. Molina , J. C. S. Neves This is my paper · ORCID
classification gr-qcastro-ph.COhep-th
keywords geometriesresultssitterwormholesanalysisanalyticalbackgroundsbrane
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In this work we present a class of geometries which describes wormholes in a Randall-Sundrum brane model, focusing on de Sitter backgrounds. Maximal extensions of the solutions are constructed and their causal structures are discussed. A perturbative analysis is developed, where matter and gravitational perturbations are studied. Analytical results for the quasinormal spectra are obtained and an extensive numerical survey is conducted. Our results indicate that the wormhole geometries presented are stable.

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Cited by 2 Pith papers

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

  1. Geodesic dynamics in brane-de Sitter wormholes

    gr-qc 2025-04 conditional novelty 5.0 of 10

    For an asymptotically de Sitter brane wormhole, the throat is shown to be an unstable fixed point and photon sphere, with a claimed Bogdanov-Takens bifurcation for radial null geodesics.

  2. Wormholes from beyond

    gr-qc 2024-12 conditional novelty 4.0 of 10

    Using the Nakas-Kanti top-down approach, the author embeds the Morris-Thorne and Molina-Neves wormholes in a regular five-dimensional anti-de Sitter bulk, so the wormhole on the brane is supported entirely by bulk fields.

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