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相关论文: Existence of Static Wormholes in $f(\mathcal{G},T)…

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This work investigates some feasible regions for the existence of traversable wormhole geometries in $f(R,G)$ gravity, where $R$ and $G$ represent the Ricci scalar and the Gauss-Bonnet invariant respectively. Three different matter contents…

综合物理 · 物理学 2018-11-12 M. Farasat Shamir , Saeeda Zia

In this paper, we investigate static spherically symmetric wormhole solutions in the background of $F(T,T_\mathcal{G})$ gravity ($T$ is the torsion scalar and $T_{\mathcal{G}}$ represents teleparallel equivalent of the Gauss-Bonnet term).…

广义相对论与量子宇宙学 · 物理学 2018-05-31 M. Sharif , Kanwal Nazir

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 explores static wormhole solutions in f(Q,T) theory, where Q is the non-metricity and T is the trace of energy-momentum tensor. We derive the field equations that describe gravitational phenomena in the existence of non-metricity…

广义相对论与量子宇宙学 · 物理学 2024-11-07 M. Zeeshan Gul , M. Sharif , Shajee Shahid , Faisal Javed

In this work, we explore wormhole solutions in $f(R,T)$ theory of gravity, where $R$ is the scalar curvature and $T$ is the trace of stress-energy tensor of matter. To investigate this, we consider static spherically symmetric geometry with…

广义相对论与量子宇宙学 · 物理学 2016-08-10 M. Zubair , Saira Waheed , Yasir Ahmad

In this paper, we discuss spherically symmetric wormhole solutions in $f(R,T)$ modified theory of gravity by introducing well-known non-commutative geometry in terms of Gaussian and Lorentizian distributions of string theory. For some…

综合物理 · 物理学 2018-11-14 M. Zubair , G. Mustafa , Saira Waheed , G. Abbas

In this work we analyze traversable wormhole spacetimes in the framework of a covariant generalization of Einstein's General Relativity known as energy-momentum squared gravity, or $f\left(R,\mathcal T\right)$ gravity, where $R$ is the…

广义相对论与量子宇宙学 · 物理学 2023-11-16 João Luís Rosa , Nailya Ganiyeva , Francisco S. N. Lobo

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

This paper investigates static wormhole solutions through Noether symmetry approach in the context of energy-momentum squared gravity. This newly developed proposal resolves the singularity of big-bang and yields feasible cosmological…

广义相对论与量子宇宙学 · 物理学 2021-05-12 M. Sharif , M. Zeeshan Gul

In this thesis, we investigate traversable wormhole spacetimes within the context of a covariant generalization of Einstein's General Relativity, namely the energy-momentum squared gravity, denoted as $f\left(R,T_{ab}T^{ab}\right)$. Here,…

广义相对论与量子宇宙学 · 物理学 2024-12-13 Nailya Ganiyeva

In this article we obtain wormhole solutions in the recently proposed extension of symmetric teleparallel gravity called $f(Q,T)$ gravity. Here, the gravitational Lagrangian $L$ is defined by an arbitrary function $f$ of $Q$ and $T$ (where…

广义相对论与量子宇宙学 · 物理学 2022-08-23 Moreshwar Tayde , Zinnat Hassan , P. K. Sahoo , Sashideep Gutti

We consider $f(R, T)$ theory of gravity, in which the gravitational Lagrangian is given by an arbitrary function of the Ricci scalar and the trace of the energy-momentum tensor, to study static spherically symmetric wormhole geometries…

广义相对论与量子宇宙学 · 物理学 2021-08-03 Ayan Banerjee , M. K. Jasim , Sushant G. Ghosh

Traversable wormhole solutions in General Relativity require exotic matter sources that violate the null energy condition (NEC), and such behavior maybe avoided in modified gravity. In this study, we analyze the energy conditions for…

广义相对论与量子宇宙学 · 物理学 2023-01-25 Anshuman Baruah , Parangam Goswami , Atri Deshamukhya

The paper deals with the static spherically symmetric wormhole solutions in $f(R)$-modified gravity theory with anisotropic matter field and for some particular choices for the shape functions. The present work may be considered as an…

广义相对论与量子宇宙学 · 物理学 2021-08-11 Bikram Ghosh , Saugata Mitra , Subenoy Chakraborty

In the present article, models of traversable wormholes within the $f(R, T)$ modified gravity theory are investigated. We have presented some wormhole models, developed from various hypothesis for the substance of their matter, i.e. various…

综合物理 · 物理学 2021-08-03 Ambuj Kumar Mishra , Umesh Kumar Sharma , Vipin Chandra Dubey , Anirudh Pradhan

In this paper we search for dynamical traversable wormhole solution in the modified $f(T)$ theory of gravity, $T$ being the torsion scalar. For such wormhole, the time dependence is inserted in the static traversable wormhole metric of…

综合物理 · 物理学 2019-03-27 R. C. Tefo , P. H. Logbo , M. J. S. Houndjo , J. Tossa

In the paper, we analyze some physical properties of static traversable WH within the framework of $f(R,T)$ modified gravitational theory. Firstly, we explore the validity of the null, weak, dominant and strong energy conditions for…

广义相对论与量子宇宙学 · 物理学 2024-03-21 Jianbo Lu , Mou Xu , Jing Guo , Ruonan Li

We consider static and spherically symmetric wormhole solutions in extended metric-affine theories of gravity supposing that stability and traversability of these objects can be achieved by means of the geometric degrees of freedom. In…

广义相对论与量子宇宙学 · 物理学 2023-11-17 Vittorio De Falco , Salvatore Capozziello

A class of $f(R, T)$ theories extends the Einstein-Hilbert action by incorporating a general function of $R$ and $T$, the Ricci scalar and the trace of the ordinary energy-momentum tensor $T_{\mu\nu}$, respectively, thereby introducing a…

广义相对论与量子宇宙学 · 物理学 2025-07-30 Yaghoub Heydarzade , Maryam Ranjbar

The current study explores the generalized embedded wormhole solutions in the background of $f(\mathcal{R},\mathcal{G})$ gravity, where $\mathcal{R}$ represents the Ricci scalar and $\mathcal{G}$ denotes the Gauss-Bonnet invariant. To…

广义相对论与量子宇宙学 · 物理学 2023-04-14 Asifa Ashraf , Saadia Mumtaz , Faisal Javed , Zhiyue Zhang
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