中文
相关论文

相关论文: Stability of a $d$-dimensional thin-shell wormhole…

200 篇论文

We consider the construction of generic spherically symmetric thin-shell traversable wormhole spacetimes in standard general relativity. By using the cut-and-paste procedure, we comprehensively analyze the stability of arbitrary spherically…

广义相对论与量子宇宙学 · 物理学 2012-08-16 Nadiezhda Montelongo Garcia , Francisco S. N. Lobo , Matt Visser

We construct thin shell Lorentzian wormholes in higher dimensional Einstein-Maxwell theory applying the ' Cut and Paste ' technique proposed by Visser. The linearized stability is analyzed under radial perturbations around some assumed…

广义相对论与量子宇宙学 · 物理学 2009-11-11 F. Rahaman , M. Kalam , S. Chakraborty

We derive the simplest traversable wormhole solutions in $n$-dimensional general relativity, assuming static and spherically symmetric spacetime with a ghost scalar field. This is the generalization of the Ellis solution (or the so-called…

广义相对论与量子宇宙学 · 物理学 2015-06-17 Takashi Torii , Hisa-aki Shinkai

In this paper, we construct thin-shell wormholes by applying the cut and paste procedure to a regular charged black hole in nonlinear electrodynamics field. We discuss different physical aspects of wormholes such as, the possible equation…

广义相对论与量子宇宙学 · 物理学 2015-06-16 M. Sharif , M. Azam

The study of traversable wormholes is very hot topic for the past 30 years. One of the best possible way to make traversable wormhole is using the thin-shells to cut and paste two spacetime which has tunnel from one region of space-time to…

广义相对论与量子宇宙学 · 物理学 2016-10-27 Ali Övgün

In this paper, using a black hole with scalar hair, we construct a scalar thin-shell wormhole (TSW) in 2+1 dimensions by applying the Visser's famous cut and paste technique. The surface stress, which is concentrated at the wormhole throat…

广义相对论与量子宇宙学 · 物理学 2017-02-14 A. Övgün , I. Sakalli

The aim of this paper is to construct regular Hayward thin-shell wormholes and analyze their stability. We adopt Israel formalism to calculate surface stresses of the shell and check the null and weak energy conditions for the constructed…

广义相对论与量子宇宙学 · 物理学 2016-08-03 M. Sharif , Saadia Mumtaz

We investigate a new thin-shell wormhole constructed by surgically grafting two regular charged black holes arising from the action using nonlinear electrodynamics coupled to general relativity. The stress-energy components within the shell…

广义相对论与量子宇宙学 · 物理学 2011-03-28 F. Rahaman , K A Rahman , Sk. A Rakib , Peter K. F. Kuhfittig

We cut and paste two Banados-Teitelboim-Zanelli (BTZ) spacetimes at a throat by the Darmois-Israel method to construct a rotating wormhole with a thin shell filled with a barotropic fluid. The thin shell at the throat and both sides of the…

广义相对论与量子宇宙学 · 物理学 2018-08-16 Naoki Tsukamoto , Takafumi Kokubu

The static spherically symmetric thin shell of proper mass $m$ and electric charge $q$ around a central star or black hole of mass $M$ is in general unstable. Although with fine-tuned $m,q,$ and $M$ it can be considered quasi-stable. These…

广义相对论与量子宇宙学 · 物理学 2025-02-13 S. Habib Mazharimousavi

In this paper we construct charged thin-shell wormholes in (2+1)-dimensions applying the cut-and -paste technique implemented by Visser, from a BTZ black hole which was discovered by Banados, Teitelboim and Zanelli, and the surface stress…

广义相对论与量子宇宙学 · 物理学 2013-10-23 Ayan Banerjee

From physics standpoint exotic matter problem is a major difficulty in thin-shell wormholes (TSWs) with spherical / cylindrical throat topologies. We aim to circumvent this handicap by considering angular dependent throats in…

综合物理 · 物理学 2015-06-26 S. Habib Mazharimousavi , M. Halilsoy

We revisit the shapes of the throats of wormholes, including thin-shell wormholes (TSWs) in $2+1-$dimensions. In particular, in the case of TSWs this is done in a flat $2+1-$dimensional bulk spacetime by using the standard method of…

广义相对论与量子宇宙学 · 物理学 2015-02-23 S. Habib Mazharimousavi , M. Halilsoy

This current analysis offers novel wormhole solutions in the background of newly developed extended $f(\mathcal{R},\mathcal{L}_m)$ gravity. We use an anisotropic matter source and a particular type of energy density demonstrating cold dark…

广义相对论与量子宇宙学 · 物理学 2024-03-05 G. Mustafa , Faisal Javed , S. K. Maurya , M. Govender , Amna Saleem

A study of the dynamical and thermodynamical stability of a charged thin-shell wormhole built by gluing two Reissner-Nordstr\"{o}m geometries is presented. The charge on the shell is linearly related to the matter content. For the dynamical…

广义相对论与量子宇宙学 · 物理学 2024-11-25 Ernesto F. Eiroa , Griselda Figueroa-Aguirre , Miguel L. Peñafiel , Santiago E. Perez Bergliaffa

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

We consider a topologically nontrivial thin-shell wormhole with a throat in the form of a $T^2$ torus. It is shown that: (i)~such a wormhole is stable with respect to excitations of the throat; (ii)~not all energy conditions are violated…

广义相对论与量子宇宙学 · 物理学 2019-02-27 Vladimir Dzhunushaliev , Vladimir Folomeev , Burkhard Kleihaus , Jutta Kunz

We constructed thin-shell wormholes using the well-known "cut and paste" technique for static black holes sourced by an anisotropic fluid within the context of the Rastall gravity. Using the generalized Lanczos equations we explored the…

广义相对论与量子宇宙学 · 物理学 2020-07-14 Iarley P. Lobo , Martin G. Richarte , J. P. Morais Graça , H. Moradpour

This paper studies wormhole solutions to Einstein gravity with an arbitrary number of time dependent compact dimensions and a matter-vacuum boundary. A new gauge is utilized which is particularly suited for studies of the wormhole throat.…

广义相对论与量子宇宙学 · 物理学 2009-11-07 A. DeBenedictis , A. Das

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