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相关论文: Intra--Galactic thin shell wormhole and its stabil…

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Spherically symmetric thin-shell wormholes are constructed within the framework of Brans-Dicke gravity. It is shown that, for appropriate values of the Brans-Dicke constant, these wormholes can be supported by matter satisfying the energy…

广义相对论与量子宇宙学 · 物理学 2009-06-26 Ernesto F. Eiroa , Martin G. Richarte , Claudio Simeone

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 construct a new type of thin-shell wormhole for non-asymptotically flat charged black holes in generalized dilaton-axion gravity inspired by low-energy string theory using cut-and-paste technique. We have shown that this thin shell…

广义相对论与量子宇宙学 · 物理学 2015-06-05 Ayan Banerjee , Farook Rahaman , Surajit Chattopadhyay , Sumita Banerjee

This paper discusses the theoretical construction of thin-shell wormholes from Kiselev black holes. We assume a barotropic equation of state for the exotic matter on the shell. While most of these wormholes are unstable to linearized radial…

广义相对论与量子宇宙学 · 物理学 2019-06-06 Peter K. F. Kuhfittig

This paper explores the role of nonlinear electrodynamics on the stable configuration of thin-shell wormholes formulated from two equivalent geometries of Reissner-Nordstr\"om black hole with nonlinear electrodynamics. For this purpose, we…

广义相对论与量子宇宙学 · 物理学 2023-01-11 Faisal Javed , G. Fatima , G. Mustafa , Ali Ovgun

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

In this article we investigate cylindrical thin-shell wormholes which are asymptotically anti-de Sitter. We analyze their stability under perturbations preserving the symmetry by using two different methods. We compare the results with…

广义相对论与量子宇宙学 · 物理学 2015-03-12 Ernesto F. Eiroa , Claudio Simeone

We construct thin shell wormholes in the magnetic Melvin universe. It is shown that in order to make a TSW in the Melvin spacetime the radius of the throat can not be larger than $\frac{2}{B_{0}}$ in which $B_{0}$ is the magnetic field…

广义相对论与量子宇宙学 · 物理学 2014-05-28 S. Habib Mazharimousavi , M. Halilsoy , Z. Amirabi

In this paper, we introduce higher dimensional thin-shell wormholes in pure Gauss-Bonnet gravity. The focus is on thin-shell wormholes constructed by $N\geq5$-dimensional spherically symmetric vacuum solutions. The results suggest that,…

广义相对论与量子宇宙学 · 物理学 2020-11-25 S. Danial Forghani , S. Habib Mazharimousavi

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 investigate the thin-shell wormholes constrained by cosmological observations for the first time in the literature. Without loss of generality, we study the thin-shell wormholes in $\omega$CDM model and analyze their stability under…

广义相对论与量子宇宙学 · 物理学 2020-09-09 Deng Wang , Xin-He Meng

We construct thin-shell electrically charged wormholes in d-dimensional general relativity with a cosmological constant. The wormholes constructed can have different throat geometries, namely, spherical, planar and hyperbolic. Unlike the…

广义相对论与量子宇宙学 · 物理学 2018-12-05 Gonçalo A. S. Dias , José P. S. Lemos

Using thin shell formalism we construct two solutions of intra-universe wormholes. The first model is a cosmological analog of the Aichelburg-Schein timehole, while another one is an intra-universe form of the Bronnikov-Ellis solution.

广义相对论与量子宇宙学 · 物理学 2016-12-15 Alexey L. Smirnov

Previous analysis about thin-shell wormholes associated to cosmic strings are extended. More evidence is found supporting the conjecture that, under reasonable assumptions about the equations of state of matter on the shell, the…

广义相对论与量子宇宙学 · 物理学 2009-07-09 Martin G. Richarte , Claudio Simeone

Within the framework of $F(R)$ theories of gravity with (2+1)-dimensions and constant scalar curvature $R$, we construct a family of thin-shell wormholes with circular symmetry and we analyze the stability of the static configurations under…

广义相对论与量子宇宙学 · 物理学 2023-01-31 Cecilia Bejarano , Ernesto F. Eiroa , Griselda Figueroa-Aguirre

We construct the asymptotically flat charged thin-shell wormholes of Lovelock gravity in seven dimensions by cut-and-paste technique, and apply the generalized junction conditions in order to calculate the energy-momentum tensor of these…

广义相对论与量子宇宙学 · 物理学 2012-02-10 M. H. Dehghani , M. R. Mehdizadeh

The linearized stability of charged thin shell wormholes under spherically symmetric perturbations is analized. It is shown that the presence of a large value of charge provides stabilization to the system, in the sense that the constrains…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Ernesto F. Eiroa , Gustavo E. Romero

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

We present a family of spherically symmetric Lorentzian wormholes in quadratic F(R) gravity, with a thin shell of matter corresponding to the throat. At each side of the shell the geometry has a different constant value of the curvature…

广义相对论与量子宇宙学 · 物理学 2020-07-22 Ernesto F. Eiroa , Griselda Figueroa-Aguirre

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