Possibility of stable thin-shell around wormholes within string cloud and quintessential field via the van der Waals and polytropic EOS

Mustafa, G.; Javed, Faisal; Maurya, S.K.; Ray, Saibal

doi:10.1016/j.cjph.2023.12.035

Chinese Journal of Physics

2024

DOI: 10.1016/j.cjph.2023.12.035

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Possibility of stable thin-shell around wormholes within string cloud and quintessential field via the van der Waals and polytropic EOS

G. Mustafa,

Faisal Javed,

S.K. Maurya

et al.

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2024

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Cited by 23 publications

References 159 publications

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New Embedded Wormhole Solutions in Ricci Inverse Gravity

Mustafa,

Javed,

Maurya

et al. 2024

Annalen der Physik

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In this work, two new embedded WH solutions are obtained by using the Class‐I approach in the background of newly fourth‐order Ricci inverse gravity. It is shown that the combination of these newly calculated shape functions and Ricci inverse gravity provides us with the possibility of obtaining traversable wormholes. All the required wormhole properties are discussed, along with flaring out and flatness conditions. The embedded diagrams within the scope of upper and lower universes are provided under the effect of both newly calculated embedded shape functions. All the energy conditions are explored with valid and negative regions. The presence of exotic matter is confirmed due to the negative region in all the energy conditions, specifically in the null energy condition. The Doppler effect through the red‐blue shifts function is also discussed. Several key findings from the current research are described that demonstrate the validity of these wormhole solutions in Ricci inverse gravity.

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New Embedded Wormhole Solutions in Ricci Inverse Gravity

Mustafa,

Javed,

Maurya

et al. 2024

Annalen der Physik

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Dynamics and Stability via Thin‐Shell of Approximated Black Holes in f(Q)$f(\mathbb {Q})$ Gravity

Javed,

Lin,

Mustafa

et al. 2024

Fortschritte der Physik

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The current study is devoted to exploring the geometrical configuration of a thin‐shell in the background of symmetric teleparallel gravity. For this purpose, the well‐known cut‐and‐paste approach by matching the inner flat and outer newly calculated class of approximated black hole (BH) solutions in symmetric teleparallel gravity are considered, i.e., uncharged, charged, and anti‐de‐Sitter BHs. The dynamical analysis of thin‐shell configuration by adopting the massive and massless scalar field via Klein‐Gordon's equation of motion is discussed. The effective potential and proper time derivative of shell radius for both massive and massless scalar shells are used to discuss the collapse, expansion, and oscillatory behavior. The stable configuration of thin‐shell is observed through the linearized radial perturbation approach with a phantomlike equation of state, i.e., quintessence, dark energy, and phantom energy. It is noted that stable/unstable behavior of thin‐shell is found after the expected position of the event horizon of an exterior manifold. It is concluded that the stability of a thin‐shell is greater for BH with cosmological constant as compared to the uncharged and charged BHs.

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Stability of GMGHS charged thin shell wormhole in string theory

Eid

2024

Indian J Phys

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Possibility of stable thin-shell around wormholes within string cloud and quintessential field via the van der Waals and polytropic EOS

Cited by 23 publications

References 159 publications

New Embedded Wormhole Solutions in Ricci Inverse Gravity

New Embedded Wormhole Solutions in Ricci Inverse Gravity

Dynamics and Stability via Thin‐Shell of Approximated Black Holes in f(Q)$f(\mathbb {Q})$ Gravity

Stability of GMGHS charged thin shell wormhole in string theory

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