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相关论文: Thin-shell Wormholes with Ordinary Matter in Pure …

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In this article, spherically symmetric thin-shell wormholes supported by a generalized Chaplygin gas are constructed and their stability under perturbations preserving the symmetry is studied. Wormholes with charge and with a cosmological…

广义相对论与量子宇宙学 · 物理学 2009-08-28 Ernesto F. Eiroa

We construct a broad family of thin-shell wormholes with circular symmetry in (2+1)-dimensional F(R) theories of gravity, with constant scalar curvature R. We study the stability of the static configurations under perturbations preserving…

广义相对论与量子宇宙学 · 物理学 2021-08-05 Cecilia Bejarano , Ernesto F. Eiroa , Griselda Figueroa-Aguirre

This paper reexamines a special class of thin-shell wormholes that are unstable in general relativity in the framework of noncommutative geometry. It is shown that as a consequence of the intrinsic uncertainty these wormholes are stable to…

高能物理 - 理论 · 物理学 2012-08-21 Peter K. F. Kuhfittig

The quartic self-interacting conformal scalar field is used to construct a thin-shell wormhole satisfying all energy conditions. Accompanying the scalar field is the extremal Reissner-Nordstr\"om black hole with a positive cosmological…

广义相对论与量子宇宙学 · 物理学 2020-03-31 S. Danial Forghani , S. Habib Mazharimousavi , Mustafa Halilsoy

Static axisymmetric thin-shell wormholes are constructed within the framework of the Brans-Dicke scalar-tensor theory of gravity. Examples of wormholes associated with vacuum and electromagnetic fields are studied. All constructions must be…

广义相对论与量子宇宙学 · 物理学 2016-02-12 Ernesto F. Eiroa , Claudio Simeone

This paper introduces a new type of thin-shell wormhole constructed from a special class of compact stellar objects rather than black holes. The construction and concomitant investigation of the stability to linearized radial perturbations…

广义相对论与量子宇宙学 · 物理学 2018-02-15 Peter K. F. Kuhfittig

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

We construct spherically symmetric thin-shell wormholes supported by a generalized Chaplygin gas in Born-Infeld electrodynamics coupled to Einstein gravity, and we analyze their stability under radial perturbations. For different values of…

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

We study the stability of thin-shell wormholes in Einstein-Maxwell-Gauss-Bonnet gravity. The equation of state of the thin shell wormhole is considered first to obey a generalized Chaplygin gas and then we generalize it to an arbitrary…

广义相对论与量子宇宙学 · 物理学 2013-12-10 Z. Amirabi , M. Halilsoy , S. Habib Mazharimousavi

In this paper, we explore static spherically symmetric wormhole solutions in the framework of $n$-dimensional Einstein Gauss-Bonnet gravity. Our objective is to find out wormhole solutions that satisfy energy conditions. For this purpose,…

综合物理 · 物理学 2016-11-02 Shamaila Rani , Abdul Jawad

We study the structure and stability of traversable wormholes built as (spherically symmetric) thin shells in the context of Palatini $f(\mathcal{R})$ gravity. Using a suitable junction formalism for these theories we find that the…

广义相对论与量子宇宙学 · 物理学 2020-11-11 Francisco S. N. Lobo , Gonzalo J. Olmo , Emanuele Orazi , Diego Rubiera-Garcia , Azmat Rustam

We introduce two classes of spherically symmetric spacetimes having a thin shell of matter, in non-quadratic F(R) theories of gravity with non-constant scalar curvature R. In the first, the thin shell joins an inner region with an outer…

广义相对论与量子宇宙学 · 物理学 2020-10-07 Ernesto F. Eiroa , Griselda Figueroa-Aguirre

In this work, we study the thin-shell wormholes in dRGT massive gravity. In order to joint two bulks of the spacetime geometry, we first derive junction conditions of the dRGT spacetime. This results the dynamics of the spherical thin-shell…

广义相对论与量子宇宙学 · 物理学 2020-08-14 Takol Tangphati , Auttakit Chatrabhuti , Daris Samart , Phongpichit Channuie

Junction conditions for vacuum solutions in five-dimensional Einstein-Gauss-Bonnet gravity are studied. We focus on those cases where two spherically symmetric regions of space-time are joined in such a way that the induced stress tensor on…

广义相对论与量子宇宙学 · 物理学 2010-01-19 C. Garraffo , G. Giribet , E. Gravanis , S. Willison

The Zipoy-Voorhees-Weyl (ZVW) spacetime characterized by mass ($M$) and oblateness ($\delta $) is proposed in the construction of viable thin-shell wormholes (TSWs). Departure from spherical / cylindrical symmetry yields positive total…

广义相对论与量子宇宙学 · 物理学 2014-09-30 S. Habib Mazharimousavi , M. Halilsoy

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

We build five-dimensional spherically symmetric wormholes within the DGP theory. We calculate the energy localized on the shell, and we find that the wormholes could be supported by matter not violating the energy conditions. We also show…

广义相对论与量子宇宙学 · 物理学 2010-09-07 Martín G. Richarte

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

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

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