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Related papers: Rotating traversable wormholes in AdS

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If a traversable wormhole smoothly connects two different spacetimes, then the flux cannot be separately conserved in any of these spaces individually. Then objects propagating in a vicinity of a wormhole in one space must feel influence of…

General Relativity and Quantum Cosmology · Physics 2020-04-07 De-Chang Dai , Dejan Stojkovic

This paper explores the effect of an extra spatial dimension on a Morris-Thorne wormhole. After proposing a suitable model, it is shown that under certain conditions, the throat of the wormhole can be threaded with ordinary matter, while…

General Relativity and Quantum Cosmology · Physics 2023-12-05 Peter K. F. Kuhfittig

This paper generalizes the static and spherically symmetric traversable wormhole geometry to a rotating axially symmetric one with a time-dependent angular velocity by means of an exact solution. It was found that the violation of the weak…

General Relativity and Quantum Cosmology · Physics 2010-11-19 Peter K. F. Kuhfittig

We have proposed a novel shape function on which the metric that models traversable wormholes is dependent. Using this shape function, the energy conditions, equation of state and anisotropy parameter are analyzed in $f(R)$ gravity,…

General Relativity and Quantum Cosmology · Physics 2020-05-19 Gauranga C. Samanta , Nisha Godani , Kazuharu Bamba

We study the effects of conservation laws on wormholes that are made traversable by a double trace deformation. After coupling the two asymptotic boundaries of a maximally extended $(d+1)$ dimensional black brane geometry with $U(1)$…

High Energy Physics - Theory · Physics 2024-03-22 Byoungjoon Ahn , Sang-Eon Bak , Viktor Jahnke , Keun-Young Kim

We consider the behavior of open strings on AdS wormholes in Gauss-Bonnet theory, which are the Gauss-Bonnet gravity duals of a pair of field theories. A string with both endpoints on the same side of the wormhole describes two charges…

High Energy Physics - Theory · Physics 2009-09-02 Mir Ali , Frenny Ruiz , Carlos Saint-Victor , Justin F. Vazquez-Poritz

In this letter, we investigate the traversable wormholes in the holographic dark energy (HDE) model constrained by the modern astronomical observations. First of all, we constrain the HDE model by adopting different data-sets, explore the…

General Relativity and Quantum Cosmology · Physics 2016-09-21 Deng Wang , Xin-he Meng

Evolving Lorentzian wormholes with the required matter satisfying the Energy conditions are discussed. Several different scale factors are used and the corresponding consequences derived. The effect of extra, decaying (in time) compact…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Sayan Kar , Deshdeep Sahdev

This paper discusses the effect that conformal symmetry can have on a charged wormhole. The analysis yields a physical interpretation of the conformal factor in terms of the electric charge. The rate of change of the conformal factor…

General Relativity and Quantum Cosmology · Physics 2016-12-08 Peter K. F. Kuhfittig

Morris \& Thorne \cite{morris1} proposed geometrical objects called traversable wormholes that act as bridges in connecting two spacetimes or two different points of the same spacetime. The geometrical properties of these wormholes depend…

General Relativity and Quantum Cosmology · Physics 2019-07-17 Nisha Godani , Gauranga C. Samanta

The inner structure of realistic materials make them exhibit momentum relaxation. In this paper we study the holographic version of the Joule-Thomson effect on AdS black holes in which translational invariance is broken by two methods:…

General Relativity and Quantum Cosmology · Physics 2019-08-29 Adolfo Cisterna , Shi-Qian Hu , Xiao-Mei Kuang

In this letter we point out the existence of solutions to General Relativity with a negative cosmological constant in four dimensions, which contain solitons as well as traversable wormholes. The latter connect two asymptotically locally…

High Energy Physics - Theory · Physics 2019-05-01 Andres Anabalon , Julio Oliva

We present rotating wormhole solutions in General Relativity, which are supported by a phantom scalar field. These solutions evolve from the static Ellis wormhole, when the throat is set into rotation. As the rotational velocity increases,…

General Relativity and Quantum Cosmology · Physics 2014-12-31 Burkhard Kleihaus , Jutta Kunz

In this paper, we discuss the thermodynamic properties of the evolving Lorentzian wormhole. For the shape function $b(r) = r_{0}^2/r$, it is shown that the wormhole spacetime admits two apparent horizons, the inner and the outer one. The…

High Energy Physics - Theory · Physics 2009-11-16 Mubasher Jamil , M. Akbar

Macroscopic traversable wormhole solutions to Einstein's field equations in $(2+1)$ and $(3+1)$ dimensions with a cosmological constant are investigated. Ensuring traversability severely constrains the material used to generate the…

General Relativity and Quantum Cosmology · Physics 2009-10-22 M. S. Delgaty , R. B. Mann

We consider Lorentzian wormholes with a phantom field and chiral matter fields. The chiral fields are described by the non-linear sigma model with or without a Skyrme term. When the gravitational coupling of the chiral fields is increased,…

General Relativity and Quantum Cosmology · Physics 2013-05-08 Efstathios Charalampidis , Theodora Ioannidou , Burkhard Kleihaus , Jutta Kunz

We investigate how non-local gravitational couplings from double trace deformation between two asymptotic boundaries of an AdS$_5$ black brane can lead to the violation of the Averaged Null Energy Condition (ANEC). The first-order…

High Energy Physics - Theory · Physics 2026-05-12 Fitria Khairunnisa , Hadyan Luthfan Prihadi , M. Zhahir Djogama , Donny Dwiputra , Freddy Permana Zen

In the present paper we discuss properties of a model of a ring wormhole, recently proposed by Gibbons and Volkov. Such a wormhole connects two flat spacetimes which are glued through discs of the radius $a$ bounded by the string with…

High Energy Physics - Theory · Physics 2023-07-26 Valeri P. Frolov , Pavel Krtous , Andrei Zelnikov

We describe a class of wormholes that generically become traversable after incorporating gravitational back-reaction from linear quantum fields satisfying appropriate (periodic or anti-periodic) boundary conditions around a non-contractible…

High Energy Physics - Theory · Physics 2019-08-12 Zicao Fu , Brianna Grado-White , Donald Marolf

We explore the possibility of formation of a traversable wormhole in General Relativity supported by particle creation mechanism. The repulsive back-reaction pressure generated through this mechanism can be thought of as a source of…

General Relativity and Quantum Cosmology · Physics 2025-01-23 Mrinnoy M. Gohain , Kalyan Bhuyan , Chayanika Chetia