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相关论文: Thin-Shell Wormholes in Neo-Newtonian Theory

200 篇论文

Newtonian fluid dynamics allows the construction of acoustic metrics from which black hole configurations can be studied. However, relativistic pressure effects are neglected within Newtonian theory. We study acoustic black holes in the…

广义相对论与量子宇宙学 · 物理学 2015-06-16 J. C. Fabris , O. F. Piattella , I. G. Salako , J. Tossa , H. E. S. Velten

In this work, we investigate static and spherically symmetric traversable wormhole solutions within the framework of the extended symmetric teleparallel gravity, specifically the $\mathcal{F}(Q,\mathcal{L}_{m},\mathcal{T})$ gravity theory,…

广义相对论与量子宇宙学 · 物理学 2025-07-15 Rounak Manna , Krishna Pada Das , Ujjal Debnath

The solutions of traversable wormholes and their geometries are investigated in higher-curvature gravity with boundary terms for each case under the presence of anisotropic, isotropic and barotropic fluids in detail. For each case, the…

广义相对论与量子宇宙学 · 物理学 2023-10-03 M. Ilyas , Kazuharu Bamba

Based on the recently introduced black-bounce spacetimes, we shall consider the construction of the related spherically symmetric thin-shell traversable wormholes within the context of standard general relativity. All of the really unusual…

广义相对论与量子宇宙学 · 物理学 2020-06-23 Francisco S. N. Lobo , Alex Simpson , Matt Visser

In this article, we construct spherical thin-shell wormholes with charge in dilaton gravity. The exotic matter required for the construction is provided by a generalized Chaplygin gas. We study the stability under perturbations preserving…

广义相对论与量子宇宙学 · 物理学 2011-10-03 Cecilia Bejarano , Ernesto F. Eiroa

In this article we theoretically construct circular thin-shell wormholes in a 2+1 dimensional spacetime. The construction is symmetric with respect to the throat. We present a general formalism for the study of the mechanical stability…

广义相对论与量子宇宙学 · 物理学 2014-09-11 Cecilia Bejarano , Ernesto F. Eiroa , Claudio Simeone

Recently, a novel model for a regular black hole was advocated which possesses an asymptotically Minkowski core implemented via an exponential suppression (in the core region) of the Misner-Sharp quasi-local mass. Using this regular black…

广义相对论与量子宇宙学 · 物理学 2020-09-23 Thomas Berry , Francisco S. N. Lobo , Alex Simpson , Matt Visser

In this paper, we investigate the model-independent traversable wormholes from baryon acoustic oscillations. Firstly, we place the statistical constraints on the average dark energy equation of state $\omega_{av}$ by only using BAO data.…

广义相对论与量子宇宙学 · 物理学 2023-08-07 Deng Wang

In our previous work [H. Zejli, Int. J. Mod. Phys. D 34, 2550052 (2025), arXiv:2508.00035], we introduced a PT-symmetric wormhole model based on a bimetric geometry, capable of generating closed timelike curves (CTCs). In this paper, we…

广义相对论与量子宇宙学 · 物理学 2025-11-20 Hicham Zejli

It has recently been shown that traversable wormholes may be supported by phantom energy. In this work phantom wormhole geometries are modelled by matching an interior traversable wormhole solution, governed by the equation of state…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Francisco S. N. Lobo

Recently, a class of spherically symmetric thin-shell wormholes in Brans-Dicke gravity have been introduced. Such wormholes can be supported by matter satisfying the weak energy condition (WEC). In this paper, we first obtain all the exact…

广义相对论与量子宇宙学 · 物理学 2015-05-28 Xiaojun Yue , Sijie Gao

We review recent works on the possibility for eternal existence of thin-shell wormholes on Einstein and Einstein-Gauss-Bonnet gravity. We introduce thin-shell wormholes that are categorized into a class of traversable wormhole solutions.…

广义相对论与量子宇宙学 · 物理学 2020-11-02 Takafumi Kokubu , Tomohiro Harada

This research delves into the potential existence of traversable wormholes (WHs) within the framework of modified, curvature based gravity. The modification includes linear perturbations of the matter Lagrangian and the trace of the…

广义相对论与量子宇宙学 · 物理学 2025-04-02 Niklas Loewer , Moreshwar Tayde , P. K. Sahoo

We discuss how the assumption of variable equation of state (EoS) allows the elimination of the instability at equilibrium throat radius $a_0=3M$ featured by previous Schwarzschild thin-shell wormhole models. Unobstructed stability regions…

广义相对论与量子宇宙学 · 物理学 2015-08-19 Victor Varela

In this work, we explore asymptotically flat charged thin-shell wormholes of third order Lovelock gravity in higher dimensions, taking into account the cut-and-paste technique. Using the generalized junction conditions, we determine the…

广义相对论与量子宇宙学 · 物理学 2015-08-19 Mohammad Reza Mehdizadeh , Mahdi Kord Zangeneh , Francisco S. N. Lobo

We present an infinite class of one-parameter scalar field extensions to the BTZ black hole in 2+1-dimensions. By virtue of the scalar charge the thin-shell wormhole supported by a linear fluid at the throat becomes stable against linear…

广义相对论与量子宇宙学 · 物理学 2017-03-21 S. Habib Mazharimousavi , Z. Amirabi , M. Halilsoy

We cut a general, static, spherically symmetric spacetime and paste its copy to make a wormhole with a thin shell of any barotropic fluid in general relativity. We show that the stability of the thin-shell wormhole is characterized by a set…

广义相对论与量子宇宙学 · 物理学 2024-01-30 Naoki Tsukamoto , Takafumi Kokubu

We construct traversable thin-shell wormholes which are asymptotically Ads/dS applying the cut and paste procedure for the case of an acoustic metric created by a relativistic Bose-Einstein condensate. We examine several definitions of the…

广义相对论与量子宇宙学 · 物理学 2017-10-17 M. G. Richarte , I. G. Salako , J. P. Morais Graça , H. Moradpour , Ali Övgün

Using the cut-and-paste procedure, we construct static and dynamic plane symmetric wormholes by surgically grafting together two spacetimes of plane symmetric vacuum solutions with a negative cosmological constant. These plane symmetric…

广义相对论与量子宇宙学 · 物理学 2008-11-26 José P. S. Lemos , Francisco S. N. Lobo

We consider novel wormhole solutions supported by a matter content that minimally violates the null energy condition. More specifically, we consider an equation of state in which the sum of the energy density and radial pressure is…

广义相对论与量子宇宙学 · 物理学 2014-11-10 Mariam Bouhmadi-Lopez , Francisco S. N. Lobo , Prado Martin-Moruno