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相关论文: Wormhole solutions in symmetric teleparallel gravi…

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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

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

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

In the present manuscript, we study traversable wormhole solutions in the background of extended symmetric teleparallel gravity with matter coupling. With the anisotropic matter distribution we probe the wormhole geometry for two different…

广义相对论与量子宇宙学 · 物理学 2023-08-16 V. Venkatesha , Chaitra Chooda Chalavadi , N. S. Kavya , P. K. Sahoo

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

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

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

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 paper discusses the possible existence of traversable wormholes in f(R) modified gravity while assuming a noncommutative-geometry background, as well as zero tidal forces. The first part of the paper aims for an overview via several…

广义相对论与量子宇宙学 · 物理学 2020-07-28 Peter K. F. Kuhfittig

This paper discusses the possibility of traversable wormholes in the galactic region supported by dark matter (DM) models and global monopole charge in the context of $f(Q)$ gravity. To understand the features of the wormholes, we…

广义相对论与量子宇宙学 · 物理学 2024-09-05 Moreshwar Tayde , P. K. Sahoo

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 paper, we consider wormhole geometries in the context of teleparallel equivalent of general relativity (TEGR) as well as $f(T)$ gravity. The TEGR is an alternative geometrical formulation of Einstein's general relativity, where…

广义相对论与量子宇宙学 · 物理学 2020-04-15 Ksh. Newton Singh , Ayan Banerjee , Farook Rahaman , M. K. Jasim

In this study, both the evolution of wormholes (by examining both the energy conditions and using the TOV equations) and the effects of the Karmarkar condition on the solutions obtained under certain specific cases were examined in the…

广义相对论与量子宇宙学 · 物理学 2025-06-04 Murat Metehan Turkoglu

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

Recently, a modified theory of gravity was presented, which consists of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\cal R)$ term constructed \`{a} la Palatini. The theory possesses extremely interesting features…

广义相对论与量子宇宙学 · 物理学 2012-12-20 Salvatore Capozziello , Tiberiu Harko , Tomi S. Koivisto , Francisco S. N. Lobo , Gonzalo J. Olmo

This manuscript investigates wormhole solutions within the framework of extended symmetric teleparallel gravity, incorporating non-commutative geometry, and conformal symmetries. To achieve this, we examine the linear wormhole model with…

广义相对论与量子宇宙学 · 物理学 2023-12-18 Chaitra Chooda Chalavadi , V. Venkatesha , N. S. Kavya , S. V. Divya Rashmi

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

The present work deals with some WH solutions in $f(Q)$ gravity theory for non-constant red-shift function subject to a power law model of $f(Q)$, $Q$ being the non-metricity scalar. Important properties of a WH configuration like the…

广义相对论与量子宇宙学 · 物理学 2025-04-29 Madhukrishna Chakraborty , Subenoy Chakraborty

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