Canonical acoustic thin-shell wormholes

Jusufi, Kimet; Овгун, Али

doi:10.1142/s021773231750047x

Cited by 22 publications

(7 citation statements)

References 52 publications

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“…Wormholes have been studied in the framework of different * kimet.jusufi@unite.edu.mk gravity theories, for example the rotating traversable wormhole solution found by Teo [14], spinning wormholes in scalar-tensor theory [15], wormholes with phantom energy [16], wormholes in Gravity's Rainbow [17], traversable Lorentzian wormhole with a cosmological constant [18], wormholes in Einstein-Cartan theory [19], wormholes in Eddington-inspired Born-Infeld gravity [20][21][22], wormholes with different scalar fields and charged wormholes [23][24][25][26][27][28][29], wormholes from cosmic strings [30], wormholes by GUTs in the early universe [31], wormholes in f (R, T) gravity [32] and recently [33][34][35]. Recently, extensive studies have been conducted by different authors related to the thin-shell wormhole approach [36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Conical Morris-Thorne wormholes with a global monopole charge

Jusufi

2018

Phys. Rev. D

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In this paper we have established an asymptotically conical Morris-Thorne wormhole solution supported by anisotropic matter fluid and a global monopole charge in the framework of a 1 + 3 dimensional gravity minimally coupled to a triplet of scalar fields φ a , resulting from the breaking of a global O(3) symmetry. For the anisotropic matter fluid we have considered the equation of state (EoS) given by P r = ωρ, with a consequence ω < −1, implying a so-called phantom energy at the throat of the wormhole which violates the energy conditions. In addition, we study the weak gravitational lensing effect using the Gauss-Bonnet theorem (GBT) applied to the wormhole optical geometry. We show that the total deflection angle consists of a term given by 4π 2 η 2 , which is independent from the impact parameter b, and an additional term which depends on the radius of the wormhole throat b 0 as well as the dimensionless constant ζ.

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Section: Introductionmentioning

confidence: 99%

Conical Morris-Thorne wormholes with a global monopole charge

Jusufi

2018

Phys. Rev. D

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“…In this purpose, they use the famous cut and paste technique with Israel junction conditions [4]. There are many applications of this method of cut and paste technique such as thin-shell wormholes [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Charged thin-shell gravastars in noncommutative geometry

2017

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In this paper we construct a charged thin-shell gravastar model within the context of noncommutative geometry. To do so, we choose the interior of the nonsingular de Sitter spacetime with an exterior charged noncommutative solution by cut-and-paste technique and apply the generalized junction conditions. We then investigate the stability of a charged thin-shell gravastar under linear perturbations around the static equilibrium solutions as well as the thermodynamical stability of the charged gravastar. We find the stability regions, by choosing appropriate parameter values, located sufficiently close to the event horizon.

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“…This interaction is described for an equation of motion which is formally identical to the covariant massless Klein-Gordon equation. Along this line of research, many different physical phenomena were examined in the past on backgrounds with such an effective geometry [10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Quasibound states of Schwarzschild acoustic black holes

Vieira,

Kokkotas

2021

Preprint

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In this paper we study the recently proposed Schwarzschild acoustic black hole spacetime, in which we investigate some physical phenomena related to the effective geometry of this background, including the analogous Hawking radiation and the quasibound states. We calculate the spectrum of quasibound state frequencies and the wave functions on the Schwarzschild acoustic background by using the polynomial condition of the general Heun function and then we discuss the stability of the system. We also compare the resonant frequencies of the Schwarzschild acoustic black hole with the ones by the standard Schwarzschild black hole. Our results may shed some light on the physics of black holes and their analogue models in condensed matter. Moreover, these studies could provide the possibility, in principle, for laboratory testing of effects whose nature is unquestionably associated with purely quantum effects in gravity.

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Canonical acoustic thin-shell wormholes

Cited by 22 publications

References 52 publications

Conical Morris-Thorne wormholes with a global monopole charge

Conical Morris-Thorne wormholes with a global monopole charge

Charged thin-shell gravastars in noncommutative geometry

Quasibound states of Schwarzschild acoustic black holes

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