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相关论文: Phantom energy supported wormhole model in $f(R,\,…

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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

We investigate traversable wormhole solutions within the framework of $f(\mathscr{Q},\mathscr{L}_m)$ gravity, a symmetric teleparallel theory featuring non-minimal coupling between geometry and matter. Adopting a linear functional form…

广义相对论与量子宇宙学 · 物理学 2026-01-15 K. Suhasini , G. Ravi Kiran , N. S. Kavya , C. S. Varsha , V. Venkatesha

Traversable wormholes in General Relativity (GR) require exotic matter sources that violate the null energy condition (NEC), and such behavior may be avoided in modified gravity. Moreover, the concept of non-commutative geometry as a…

广义相对论与量子宇宙学 · 物理学 2022-10-18 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 this paper, we present new generalized wormhole (WH) solutions within the context of $f(R)$ gravity. Specifically, we focus on $f(R)$ gravitational theories formulated in the metric formalism, with our investigation centered on a…

广义相对论与量子宇宙学 · 物理学 2024-08-15 Abdelghani Errehymy , Youssef Khedif , Orhan Donmez , Mohammed Daoud , Kairat Myrzakulov , Sabit Bekov

This research work provides an exhaustive investigation of the viability of different coupled wormhole (WH) geometries with the relativistic matter configurations in the $f(R,G,T)$ extended gravity framework. We consider a specific model in…

广义相对论与量子宇宙学 · 物理学 2025-04-01 M. Ilyas , A. R. Athar , Fawad Khan , Nasreen Ghafoor , Haifa I. Alrebdi , Kottakkaran Sooppy Nisar , Abdel-Haleem Abdel-Aty

Traversable wormholes, tunnel like structures introduced by Morris \& Thorne \cite{morris1}, have a significant role in connection of two different space-times or two different parts of the same space-time. The characteristics of these…

广义相对论与量子宇宙学 · 物理学 2019-02-20 Nisha Godani , Gauranga C. Samanta

In this work, we analyze the wormhole solutions in $f(R)$ gravity. Specifically we sought for wormhole geometry solutions for the following three shape functions: (i) $b(r)=r_{0}+\rho_{0}r_{0}^{3}\ln\left(\frac{r_{0}}{r}\right)$, (ii)…

广义相对论与量子宇宙学 · 物理学 2022-04-22 B. Mishra , A. S. Agrawal , S. K. Tripathy , S. Ray

In this study, we explore the new wormhole solutions in the framework of new modified $f(R,L_m)$ gravity. To obtain a characteristic wormhole solution, we use anisotropic matter distribution and a specific form of energy density. As second…

广义相对论与量子宇宙学 · 物理学 2023-05-12 N. S. Kavya , V. Venkatesha , G. Mustafa , P. K. Sahoo , S. V. Divya Rashmi

Wormholes are a solution for General Relativity field equations which characterize a passage or a tunnel that connects two different regions of space-time and is filled by some sort of exotic matter, that does not satisfy the energy…

广义相对论与量子宇宙学 · 物理学 2019-06-14 P. H. R. S. Moraes , W. de Paula , R. A. C. Correa

This study aims to investigate the viability of a viable logarithmic f(R) gravity for inflation in giving wormhole solutions. We consider a static and spherically symmetric spacetime and two different shape functions. We found that the…

广义相对论与量子宇宙学 · 物理学 2022-06-27 Yusmantoro , Rian Julianto

In this work, we have studied the traversable wormholes geometry in $f(R)$ theory gravity, where $R$ be the Ricci scalar. The wormhole solution for some assumed $f(R)$ functions have been presented. The assumption of $f(R)$ is based on the…

广义相对论与量子宇宙学 · 物理学 2021-12-24 B. Mishra , A. S. Agrawal , S. K. Tripathy. Saibal. Ray

It has been argued that wormholes are as good a prediction of Einstein's theory as black holes but the theoretical construction requires a reverse strategy, specifying the desired geometric properties of the wormhole and leaving open the…

广义相对论与量子宇宙学 · 物理学 2017-02-15 Peter K. F. Kuhfittig

This study explores the potential existence of traversable wormholes influenced by a global monopole charge within the $f(Q)$ gravity framework. To elucidate the characteristics of these wormholes, we conducted a comprehensive analysis of…

广义相对论与量子宇宙学 · 物理学 2024-06-26 Moreshwar Tayde , P. K. Sahoo

In this study, we investigate the possible existence of static and spherically symmetric wormhole solutions within the context of the newly formulated extended $f(Q,T)$ gravity. We analyze a linear model, $f(Q,T)=\alpha Q+ \beta T$, and…

广义相对论与量子宇宙学 · 物理学 2026-02-03 Sara Rastgoo , Foad Parsaei , Soudabe Nasirimoghadam

This article explores wormhole solutions within the framework of Finsler geometry and the modified gravity theory. Modifications in gravitational theories, such as $f(\mathcal{R}, \mathcal{T})$ gravity, propose alternatives that potentially…

广义相对论与量子宇宙学 · 物理学 2024-07-11 Yashwanth B. R. , Narasimhamurthy S. K. , Z. Nekouee

This article investigates the properties of a wormhole model in a specific gravity theory, namely $f(Ric, T)=Ric+2\lambda T$. The wormhole solution is analyzed using an exponential shape function. The study examines various parameters, such…

广义相对论与量子宇宙学 · 物理学 2024-03-26 Manjunath Malligawad , S. K. Narasimhamurthy , Z. Nekouee , Mallikarjun Y. Kumbar

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

In the present article we propose a new hybrid shape function for wormhole (WH)s in the modified $f(R,T)$ gravity. The proposed shape function satisfied the conditions of WH geometry. Geometrical behavior of WH solutions are discussed in…

广义相对论与量子宇宙学 · 物理学 2020-05-22 Parbati Sahoo , Sanjay Mandal , P. K. Sahoo

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