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We present the gravity description of evaporating black holes that end up with eternal traversable wormholes where every would-be behind horizon degree is available in asymptotic regions. The transition is explicitly realized by a…

High Energy Physics - Theory · Physics 2019-03-28 Dongsu Bak , Chanju Kim , Sang-Heon Yi

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

In a recent paper, we studied a modified version of the Einstein-Rosen bridge. This modified bridge is traversable and works as a one-way membrane: a particle on the first sheet falling toward the throat will reach it in finite time (in…

General Relativity and Quantum Cosmology · Physics 2024-09-06 Pascal Koiran , Hicham Zejli , J-P Levy , Florent Margnat , M-F Duval , Hasnae Zejli

We study information recovery in black hole evaporation using traversable wormhole protocols in AdS$_2$ Jackiw-Teitelboim gravity with matter fields coupled to an external bath. By introducing a simple non-local interaction between left and…

High Energy Physics - Theory · Physics 2025-10-28 Ricardo Espíndola , Viktor Jahnke , Keun-Young Kim

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

Poisson-Lie (PL) T-duality has received much attention over the last five years in connection with integrable string worldsheet theories. At the level of the worldsheet, the algebraic structure underpinning these connections is made…

High Energy Physics - Theory · Physics 2019-04-24 Saskia Demulder , Falk Hassler , Daniel C. Thompson

In 6D general relativity with a phantom scalar field as a source of gravity, we present solutions that implement a transition from an effective 4D geometry times small extra dimensions to an effectively 6D space-time where the physical laws…

General Relativity and Quantum Cosmology · Physics 2017-09-19 K. A. Bronnikov , P. A. Korolyov , A. Makhmudov , M. V. Skvortsova

Inside a three-dimensional strong topological insulator, a tube with $h/2e$ magnetic flux carries a pair of protected one-dimensional linear fermionic modes. This phenomenon is known as the "wormhole effect". In this work, we find that the…

Mesoscale and Nanoscale Physics · Physics 2020-11-04 Ming Gong , Ming Lu , Haiwen Liu , Hua Jiang , Qing-Feng Sun , X. C. Xie

A recent study by Rahaman et al. has shown that the galactic halo possesses the necessary properties for supporting traversable wormholes, based on two observational results, the density profile due to Navarro et al. and the observed flat…

General Relativity and Quantum Cosmology · Physics 2016-04-25 Peter K. F. Kuhfittig

This MSc thesis is divided in to two parts. The first, covers the foundations of theories of gravitation, and, the second incorporates original work on the subject of the existence of traversable wormholes in $f(R)$ modified theories of…

General Relativity and Quantum Cosmology · Physics 2011-07-15 Miguel A. Oliveira

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

Morris and Thorne developed wormhole solutions in the late 1980s when they discovered a recipe that wormholes must follow for travelers to cross them safely. They describe exotic matter as satisfying $-p_{r} > \rho$, where $p_{r}$ is the…

General Relativity and Quantum Cosmology · Physics 2024-06-25 P. H. R. S. Moraes , A. S. Agrawal , B. Mishra

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

We study a class of interface conformal field theories obtained by taking a large $N$ CFT and turning on a relevant double-trace deformation over half space. At low energies, this leads to a conformal interface separating two CFTs which are…

High Energy Physics - Theory · Physics 2025-02-11 Simone Giombi , Elizabeth Helfenberger , Himanshu Khanchandani

Traversable wormholes, studied by Morris and Thorne \cite{Morris1} in general relativity, are investigated in this research paper in $f(R,T)$ gravity by introducing a new form of non-linear $f(R,T)$ function. By using this novel function,…

General Physics · Physics 2020-01-08 Nisha Godani , Gauranga C. Samanta

It is shown that the O(d,d;R) deformations of the superstring vacua and the O(d,d+16;R) deformations of the heterotic string vacua preserve extended worldsheet supersymmetry and, hence, generate superconformal deformations. The…

High Energy Physics - Theory · Physics 2009-10-28 S. F. Hassan

Non-geometric string backgrounds were proposed to be related to a non-associative deformation of the space-time geometry. In the flux formulation of double field theory (DFT), the structure of mathematically possible non-associative…

High Energy Physics - Theory · Physics 2015-06-18 Ralph Blumenhagen , Michael Fuchs , Falk Hassler , Dieter Lust , Rui Sun

We investigate unoriented strings and superstrings in two dimensions and their dual matrix quantum mechanics. Most of the models we study have a tachyon tadpole coming from the RP^2 worldsheet which needs to be cancelled by a…

High Energy Physics - Theory · Physics 2009-11-10 Jaume Gomis , Anton Kapustin

We construct a traversable wormhole from a charged AdS black hole by adding a coupling between the two boundary theories. We investigate how the effect of this deformation behaves in the extremal limit of the black hole. The black holes…

High Energy Physics - Theory · Physics 2020-12-30 Seamus Fallows , Simon F. Ross

We investigate the proposed holographic duality between the TsT transformation of IIB string theory on AdS$_3\times {\cal N}$ with NS-NS flux and a single-trace $T\bar{T}$ deformation of the symmetric orbifold CFT. We present a…

High Energy Physics - Theory · Physics 2023-05-11 Wei Cui , Hongfei Shu , Wei Song , Juntao Wang
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