Thin-shell wormholes supported by total normal matter

Mazharimousavi, S. Habib; Halilsoy, Mustafa

doi:10.1140/epjc/s10052-014-3067-0

Cited by 22 publications

(31 citation statements)

References 54 publications

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“…Finally, we admit that in each case our energy density happens to be negative so that we are confronted with exotic matter. In a separate study we have shown that not to have exotic matter to thread the wormhole we have to abandon spherical symmetry and consider prolate/oblate spheroidal sources [48].…”

Section: Resultsmentioning

confidence: 99%

Thin-shell wormholes from the regular Hayward black hole

2014

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We revisit the regular black hole found by Hayward in 4-dimensional static, spherically symmetric spacetime. To find a possible source for such a spacetime we resort to the nonlinear electrodynamics in general relativity. It is found that a magnetic field within this context gives rise to the regular Hayward black hole. By employing such a regular black hole we construct a thin-shell wormhole for the case of various equations of state on the shell. We abbreviate a general equation of state by p = ψ(σ ) where p is the surface pressure which is a function of the mass density (σ ). In particular, linear, logarithmic, Chaplygin, etc. forms of equations of state are considered. In each case we study the stability of the thin shell against linear perturbations. We plot the stability regions by tuning the parameters of the theory. It is observed that the role of the Hayward parameter is to make the TSW more stable. Perturbations of the throat with small velocity condition are also studied. The matter of our TSWs, however, remains exotic.

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Section: Resultsmentioning

confidence: 99%

Thin-shell wormholes from the regular Hayward black hole

2014

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“…Different TSW solutions have been proposed, including, charged TSW [8,9], TSW in heterotic string theory [10], TSW from a noncommutative BTZ black hole [11], TSW in Einstein-Maxwell-Gauss-Bonnet gravity [12], rotating TSW [13,14], TSW from scalar hair black hole [15], TSW supported by normal matter [16,17], cylindrical TSW [18][19][20][21][22][23][24], and TSW with a cosmological constant [25,26], and wormholes in the framework of mimetic gravity; see [27] and the references therein. Recently, Das [28], showed that by replacing the classical trajectories (geodesics) with the so-called quantal or Bohmian trajectories gives rise to the quantum version of the Raychaudhuri equation (QRE).…”

Section: Introductionmentioning

confidence: 99%

Quantum corrected Schwarzschild thin-shell wormhole

Jusufi

2016

Eur. Phys. J. C

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Recently, Ali and Khalil (Nucl Phys B, 909, 173-185, 2016), based on Bohmian quantum mechanics, derived a quantum corrected version of the Schwarzschild metric. In this paper, we construct a quantum corrected Schwarzschild thin-shell wormhole (QSTSW) and investigate the stability of this wormhole. First we compute the surface stress at the wormhole throat by applying the Darmois-Israel formalism to the modified Schwarzschild metric and show that exotic matter is required at the throat to keep the wormhole stable. We then study the stability analysis of the wormhole by considering phantom-energy for the exotic matter, generalized Chaplygin gas (GCG), and the linearized stability analysis. It is argued that quantum corrections can affect the stability domain of the wormhole.

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“…Inspired by this work we provide thin-shell wormholes from noncommutative BTZ black hole in (2+1)-dimensional gravity. A well studied of thin-shell wormholes in lower dimensional gravity have been found in [67][68][69][70][71].…”

Section: Introductionmentioning

confidence: 99%

Stability of thin-shell wormholes from noncommutative BTZ black hole

Bhar

Banerjee

2015

Int. J. Mod. Phys. D

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In this paper, we construct thin-shell wormholes in (2+1)-dimensions from noncommutative BTZ black hole by applying the cut-and-paste procedure implemented by Visser. We calculate the surface stresses localized at the wormhole throat by using the Darmois-Israel formalism, and we find that the wormholes are supported by matter violating the energy conditions. In order to explore the dynamical analysis of the wormhole throat, we consider that the matter at the shell is supported by dark energy equation of state p = ωρ with ω < 0. The stability analysis is carried out of these wormholes to linearized spherically symmetric perturbations around static solutions. Preserving the symmetry we also consider the linearized radial perturbation around static solution to investigate the stability of wormholes which explored by the parameter β (speed of sound).

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Thin-shell wormholes supported by total normal matter

Cited by 22 publications

References 54 publications

Thin-shell wormholes from the regular Hayward black hole

Thin-shell wormholes from the regular Hayward black hole

Quantum corrected Schwarzschild thin-shell wormhole

Stability of thin-shell wormholes from noncommutative BTZ black hole

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