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相关论文: Static Spherically Symmetric Wormholes in $f(R,T)$…

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Models of static wormholes are investigated in the framework of $f(\textit{R}, \textit{T})$ gravity ($\textit{R}$ being the curvature scalar, and $\textit{T}$ the trace of the energy momentum tensor). An attempt to link the energy density…

广义相对论与量子宇宙学 · 物理学 2018-12-31 Emilio Elizalde , Martiros Khurshudyan

This study aims to investigate the physical properties of wormhole geometry within the context of $f(T,\mathcal{T})$ gravity, which serves as a teleparallel formulation of general relativity. We study a linear model,…

广义相对论与量子宇宙学 · 物理学 2025-04-15 Foad Parsaei , Sara Rastgoo

To find more deliberate $f(R, T)$ astrophysical solutions, we proceed by studying wormhole geometries under the assumption of spherical symmetry and the existence of a conformal Killing symmetry to attain the more acceptable astrophysical…

广义相对论与量子宇宙学 · 物理学 2020-08-21 Ayan Banerjee , Ksh. Newton Singh , M. K. Jasim , Farook Rahaman

This study presents new spherically symmetric and dynamical wormhole solutions supported by ordinary matter modeled as an anisotropic fluid, exhibiting a traversable nature. To achieve this goal, we adopt different approaches to obtain both…

广义相对论与量子宇宙学 · 物理学 2025-04-29 M. Zubair , Hina Azmat , Quratulien Muneer , Saira Waheed , M. B. Cruz

In this paper, we derive some new exact solutions of static wormholes in f(T) gravity. We discuss independent cases of the pressure components including isotropic and anisotropic pressure. Lastly we consider radial pressure satisfying a…

广义相对论与量子宇宙学 · 物理学 2013-01-22 Mubasher Jamil , Davood Momeni , Ratbay Myrzakulov

In this paper, we analyze static traversable wormholes via Noether symmetry technique in modified Gauss-Bonnet $f(\mathcal{G})$ theory of gravity (where $\mathcal{G}$ represents Gauss-Bonnet term). We assume isotropic matter configuration…

广义相对论与量子宇宙学 · 物理学 2020-09-03 M. Sharif , Iqra Nawazish , Shahid Hussain

This paper discusses several new exact solutions of static wormholes in $f(R)$ gravity with a noncommutative-geometry background, which replaces point-like structures by smeared objects. In the first part of the paper we assume the…

广义相对论与量子宇宙学 · 物理学 2014-10-21 Mubasher Jamil , Farook Rahaman , Ratbay Myrzakulov , P. K. F. Kuhfittig , Nasr Ahmed , Umar F Mondal

The primary objective of this article is to study the energy condition bounds for spherical and hyperbolic wormholes in well-known $f(R,T)$ theory of gravity. For this purpose, we formulate the field equations for spherically and…

广义相对论与量子宇宙学 · 物理学 2022-08-19 M. Zubair , Quratulien Muneer , Saira Waheed

In this paper, we evaluate traversable wormhole solutions through Karmarkar condition in $f(R,T)$ theory, where $T$ is the trace of the energy-momentum tensor and $R$ represents the Ricci scalar. We develop a wormhole shape function for the…

广义相对论与量子宇宙学 · 物理学 2023-03-06 M. Sharif , Arooj Fatima

We consider the equations of motion of an anisotropic space-time in $f(T)$ theory, where $T$ is the torsion. New spherically symmetric solutions of black holes and wormholes are obtained with a constant torsion and the cases for which the…

宇宙学与河外天体物理 · 物理学 2015-05-30 M. Hamani Daouda , Manuel E. Rodrigues , M. J. S. Houndjo

This study explores asymptotically flat wormhole solutions within the framework of $f(R,T)$ gravity. We analyze $f(R,T)$ expressed as $f(R,T)=R+\lambda T+\lambda_1 T^2$. A linear equation of state is employed for both radial and lateral…

广义相对论与量子宇宙学 · 物理学 2024-10-29 Foad Parsaei , Sara Rastgoo

We explore the properties of traversable wormhole spacetimes within the framework of energy-momentum squared gravity, also known as $f(R,T^2)$ gravity, where $R$ represents the Ricci scalar, $T_{ab}$ is the energy-momentum tensor, and $T^2…

广义相对论与量子宇宙学 · 物理学 2025-02-27 Nailya Ganiyeva , João Luís Rosa , Francisco S. N. Lobo

We explore the existence of wormholes in the context of $f(R,T)$ gravity. The $f(R,T)$ theory is a curvature-matter coupled modified gravity that depends on an arbitrary function of the Ricci scalar $R$ and the trace of the stress-energy…

广义相对论与量子宇宙学 · 物理学 2023-05-24 Ayan Banerjee , Takol Tangphati , Anirudh Pradhan

The present work is an attempt to find possible traversable wormhole solutions in static spherically symmetric space-time supported by anisotropic matter field. Part of the work could be considered as a generalization of the work in Phys.…

广义相对论与量子宇宙学 · 物理学 2019-03-11 Shibaji Halder , Subhra Bhattacharya , Subenoy Chakraborty

We study the geometry of a wormhole spacetime filled with anisotropic matter in the context of general relativity. In the course of the study, new static and spherically symmetric solutions, analytic and numerical ones, are found. We…

广义相对论与量子宇宙学 · 物理学 2019-09-04 Hyeong-Chan Kim , Youngone Lee

In this article, we have discussed Morris and Thorne (MT) wormhole solutions in a modified theory of gravity that admits conformal motion. Here we explore the wormhole solutions in $f(R,\,T)$ gravity, which is a function of the Ricci scalar…

广义相对论与量子宇宙学 · 物理学 2022-05-04 Piyali Bhar , Pramit Rej , P. K. Sahoo

We propose, as a novelty in the literature, the modelling of wormholes within the particular case of the $f(R,T)$ gravity, namely $f(R,T)=R+\alpha R^{2}+\lambda T$, with $R$ and $T$ being the Ricci scalar and trace of the energy-momentum…

广义相对论与量子宇宙学 · 物理学 2018-01-23 P. K. Sahoo , P. H. R. S. Moraes , Parbati Sahoo

We present a new class of solutions for static spherically symmetric wormhole spacetimes in conformal gravity and outline a detailed method for their construction. As an explicit example, we construct a class of traversable and…

广义相对论与量子宇宙学 · 物理学 2018-10-09 Manuel Hohmann , Christian Pfeifer , Martti Raidal , Hardi Veermäe

In this work, spherically symmetric thin-shell wormholes with a conformally invariant Maxwell field for $N$-dimensional $F(R)$ gravity and constant scalar curvature $R$ are built. Two cases are considered: symmetric wormholes and asymmetric…

广义相对论与量子宇宙学 · 物理学 2023-07-13 Griselda Figueroa-Aguirre

This article explores new physically viable wormhole solutions within the framework of f(R,Lm) gravity theory, incorporating noncommutative backgrounds and conformal symmetries. The study investigates the impact of model parameters on the…

广义相对论与量子宇宙学 · 物理学 2024-01-09 N. S. Kavya , G. Mustafa , V. Venkatesha , P. K. Sahoo