Spherically symmetric traversable wormholes in the torsion and matter coupling gravity formalism

Errehymy, Abdelghani; Hansraj, Sudan; Maurya, S. K.; Hansraj, Chevarra; Daoud, Mohammed

doi:10.1016/j.dark.2023.101258

Cited by 23 publications

(6 citation statements)

References 74 publications

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“…Within the Finsler framework in equation (10), a(r) stands for the redshift function, while b(r) is the shape function [45]. a(r) explains the redshift effect and tidal force in the wormhole space-time.…”

Section: Strong Convexitymentioning

confidence: 99%

“…Errehymy et al [9] delved into the world of generalized Ellis-Bronikov (GEB) traversable wormholes specifically, in the context of static and spherically symmetric space-time governed by f (R) gravity. Shifting the cosmic focus, spherically symmetric traversable wormholes took the spotlight in discussions on torsion-matter coupling gravity [10]. By adding the stress-energy tensor term, T Harko et al [11] generalized the f (R) gravitational theory and developed the f (R, T) MGT.…”

Section: Introductionmentioning

confidence: 99%

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Finslerian wormhole solution in the framework of modified gravity

Malligawad,

Narasimhamurthy,

Nekouee

et al. 2024

Phys. Scr.

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This article investigates the properties of a wormhole model in a speciﬁc gravity theory, namely f(Ric, T ) = Ric + 2λT . The wormhole solution is analyzed using an exponential shape function. The study examines various parameters, such as density, radial pressure, transverse pressure, equation-of-state parameters, and energy conditions, within the framework of deformed gravity. The research emphasizes the inﬂuence of the parameter λ on energy condition violations and the equilibrium state of the Finslerian wormhole solution. These eﬀects are attributed to anisotropic and hydrostatic forces present in modiﬁed gravity. The study demonstrates that the gravity model eﬀectively captures the characteristics of wormholes within the Finslerian space-time. Additionally, the identiﬁed features of the wormhole are utilized to visualize its structure by creating a three-dimensional representation of the embedded surface. In summary, this research contributes to understanding wormholes in modiﬁed gravity theories, highlighting the importance of the parameter λ in determining their behavior and properties.

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Section: Strong Convexitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Finslerian wormhole solution in the framework of modified gravity

Malligawad,

Narasimhamurthy,

Nekouee

et al. 2024

Phys. Scr.

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“…This part will examine the embedding surface diagrams and extract the essential criteria for representing the embedded wormhole configurations. The visualized insights of the wormhole are separated by geometric embeddings [50,51]. We consider an equatorial slice 2 q = p since our metric is spherically symmetric (3), and the time coordinates t=constant value is fixed.…”

Section: Embedding Diagrammentioning

confidence: 99%

New spherically symmetric wormhole solutions in f(Q)-gravity theory

Kiroriwal,

Kumar,

Maurya

et al. 2023

Phys. Scr.

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In this study, we examine the new spherically symmetric wormhole solutions in modified symmetric teleparallel (f(Q)) gravity theory. Using the Morris-Thorne method, we construct traversable wormholes with a physically reasonable energy condition and investigate their stability under small perturbations. We discuss two wormhole geometries under the linear functional form of f(Q) with two distinct shape functions. Our results show that the violations of energy conditions in f(Q) gravity provide a viable framework for the study of wormholes. We analyze the properties of wormholes and their behavior under different conditions such as energy conditions, equilibrium conditions, and volume integral quantifiers to check the stability of wormholes. By using the anisotropy parameter, we observed that model-I is attractive in nature and model-II is attractive and repulsive both varying according to the value of r and constant parameters.

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“…Studying the physical attributes of compact stellar objects using teleparallel gravity is also useful for understanding their nature [26][27][28][29][30]. Teleparallel gravity and other modified gravities are employed for modeling compact stellar objects like strange stars, neutron stars, wormholes, and black holes [31][32][33][34][35]. Typically, compact stars are modeled using the isotropic stellar configuration.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic quintessence compact star in f(T) gravity with Tolman–Kuchowicz metric potentials

Bhar,

Rahaman,

Das

et al. 2024

Commun. Theor. Phys.

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To obtain analytically relativistic quintessence anisotropic spherical solutions in the $f(T)$ paradigm is the primary objective of this paper. To do this, the pressure anisotropy condition is imposed and we employ a metric potential of the Tolman-Kuchowicz type. We also suppose that our current model incorporates a quintessence field characterized by a parameter $\omega_q$, in addition to the anisotropic matter distribution. In the presence of the parameter $\alpha$, the field equations are modified by the choice of the $f (T)$ function. The $f(T)$ gravity parameter $\alpha$ adds new components to the basic physical characteristics, such as density, pressure, subliminal sound velocity, surface redshift, etc of the present model. By selecting the compact star Her X-1 and varying $\alpha$ from $0.5$ to $2.5$, we examined all the physical characteristics of the model parameter of the configuration. The graphical process demonstrates that a more compact item is produced with greater values of $\alpha$. The hydrostatic equilibrium condition of the model is discussed as well as the mass-radius relationship for our current model is obtained.

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Spherically symmetric traversable wormholes in the torsion and matter coupling gravity formalism

Cited by 23 publications

References 74 publications

Finslerian wormhole solution in the framework of modified gravity

Finslerian wormhole solution in the framework of modified gravity

New spherically symmetric wormhole solutions in f(Q)-gravity theory

Anisotropic quintessence compact star in f(T) gravity with Tolman–Kuchowicz metric potentials

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