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Traversable thin-shell wormhole in the 4D Einstein-Gauss-Bonnet theory

Cheng-Youg Zhang Chao Niu; Wei-Liang Qian; Xiaobao Wang; Peng Liu

Chinese journal of physics v.83, p.527-538, 2023

Taiwan Elsevier 2023

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  • Título:
    Traversable thin-shell wormhole in the 4D Einstein-Gauss-Bonnet theory
  • Autor: Cheng-Youg Zhang
  • Chao Niu; Wei-Liang Qian; Xiaobao Wang; Peng Liu
  • Assuntos: FÍSICA; BURACOS DE MINHOCA; Thin-Shell Wormhole; 4d Einstein–Gauss–Bonnet Theory
  • É parte de: Chinese journal of physics v.83, p.527-538, 2023
  • Notas: Disponível em: https://doi.org/10.1016/j.cjph.2023.04.016. Acesso em: 31 out. 2023
  • Descrição: This work investigates the spherically symmetric thin-shell wormhole solutions in four-dimensional Einstein–Gauss–Bonnet theory and explores their stabilities under radial, linear perturbations. These solutions are typically traversable and characterized by a thin-shell throat in accordance with Israel’s junction conditions. In asymptotically flat and AdS spacetimes with a negative Gauss–Bonnet coupling constant, stable neutral wormholes are encountered when the magnitude of the coupling constant becomes significant. The throats of such wormholes are sustained by ordinary matter and possess finite radii. In asymptotically dS spacetimes, no stable neutral wormhole featuring ordinary matter is observed. On the other hand, for positive Gauss–Bonnet coupling constant, stable thin-shell wormhole solutions can be established when the throats are exclusively supported by exotic matter. Moreover, stable charged wormholes comprised of ordinary matter are found universally in the asymptotically flat, AdS, and dS spacetimes. Unlike their neutral counterparts, the throat radii of such charged wormholes can be arbitrarily small. However, as the charge becomes more significant, such solutions only remain stable when supported by exotic matter.
  • Editor: Taiwan Elsevier
  • Data de criação/publicação: 2023
  • Formato: p. 527-538.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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