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相关论文: Wormholes in $R^2$-gravity within the $f(R,T)$ for…

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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

In this work we propose the modelling of static wormholes within the $f(R,T)$ extended theory of gravity perspective. We present some models of wormholes, which are constructed from different hypothesis for their matter content, i.e.,…

广义相对论与量子宇宙学 · 物理学 2017-09-06 P. H. R. S. Moraes , P. K. Sahoo

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

Alternative gravity is nowadays an extremely important tool to address some persistent observational issues, such as the dark sector of the universe. They can also be applied to stellar astrophysics, leading to outcomes one step ahead of…

广义相对论与量子宇宙学 · 物理学 2019-08-15 P. H. R. S. Moraes , P. K. Sahoo

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

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

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

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

We study wormhole solutions in the framework of f (R,T) gravity where R is the scalar curvature, and T is the trace of the stress-energy tensor of the matter. We have obtained the shape function of the wormhole by specifying an equation of…

广义相对论与量子宇宙学 · 物理学 2014-01-30 Tahereh Azizi

We present a wormhole construction in the framework of the $f(R,T)$ extended gravity theory, with $R$ being the Ricci curvature scalar and $T$ the trace of the energy-momentum tensor, in the case in which the energy-momentum tensor is…

广义相对论与量子宇宙学 · 物理学 2024-10-07 Marcelo Montenegro Lapola

In this present work, we have studied the traversable wormhole geometries in $f(R,T)$ gravity theory, where $R$ denotes the Ricci scalar and $T$ is the trace of the energy-momentum tensor. Firstly, two new shape functions are obtained for…

广义相对论与量子宇宙学 · 物理学 2023-03-01 Bikram Ghosh , Saugata Mitra

We present a traversable wormhole solution using the traceless $f(R,T)$ theory of gravity. In the $f(R,T)$ gravity, the Ricci scalar $R$ in the Einstein-Hilbert action is replaced by a function of $R$ and trace of the energy momentum tensor…

广义相对论与量子宇宙学 · 物理学 2021-09-02 Parbati Sahoo , P. H. R. S. Moraes , Marcelo M. Lapola , P. K. Sahoo

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

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

Models of static wormholes within the $f(\textit{R}, \textit{T})$ extended theory of gravity are investigated and, in particular, the family $f(\textit{R}, \textit{T}) = R + \lambda T$, with $T = \rho + P_{r} + 2P_{l}$ being the trace of…

广义相对论与量子宇宙学 · 物理学 2019-09-25 Emilio Elizalde , Martiros Khurshudyan

In this work, we introduce a novel set of asymptotically flat wormhole solutions within the framework of $f(R,T)$ theory of gravity. Considering a linear $f(R,T)=R+ 2\lambda T$ form, we show that a wide variety of wormhole solutions with…

广义相对论与量子宇宙学 · 物理学 2024-08-09 Sara Rastgoo , Foad Parsaei

Morris and Thorne \cite{morris1} proposed traversable wormholes, hypothetical connecting tools, using the concept of Einstein's general theory of relativity. In this paper, the modification of general relativity (in particular $f(R,T)$…

广义相对论与量子宇宙学 · 物理学 2020-05-05 Nisha Godani , Gauranga C. Samanta

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

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

In the present work, a new form of the logarithmic shape function is proposed for the linear $f(R,T)$ gravity, $f(R,T)=R+2\lambda T$ where $\lambda$ is an arbitrary coupling constant, in wormhole geometry. The desired logarithmic shape…

综合物理 · 物理学 2021-08-02 Archana Dixit , Chanchal Chawla , Anirudh Pradhan
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