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We construct a large family of Euclidean supersymmetric wormhole solutions of type IIB supergravity which are asymptotically AdS$_5 \times S^5$. The solutions are constructed using consistent truncation to maximally gauged supergravity in…

High Energy Physics - Theory · Physics 2023-09-07 Davide Astesiano , Fridrik Freyr Gautason

We study various aspects of the mass deformed SYK model which can escape the interiors of pure boundary state black holes. SYK boundary states are given by a simple local boundary condition on the Majorana fermions and then evolved in…

High Energy Physics - Theory · Physics 2020-10-20 Tomoki Nosaka , Tokiro Numasawa

We study the thermodynamics of four-dimensional Kerr-Newman-AdS black holes both in the canonical and the grand-canonical ensemble. The stability conditions are investigated, and the complete phase diagrams are obtained, which include the…

High Energy Physics - Theory · Physics 2009-10-31 Marco M. Caldarelli , Guido Cognola , Dietmar Klemm

We reconsider the role of wormholes in the AdS/CFT correspondence. We focus on Euclidean wormholes that connect two asymptotically AdS or hyperbolic regions with $\mathbb{S}^1\times \mathbb{S}^{d-1}$ boundary. There is no solution to…

High Energy Physics - Theory · Physics 2022-11-30 Jordan Cotler , Kristan Jensen

An effective string theory in physically relevant cosmological and black hole space times is reviewed. Explicit computations of the quantum string entropy, partition function and quantum string emission by black holes (Schwarzschild,…

High Energy Physics - Theory · Physics 2008-11-26 Marina Ramon Medrano , Norma G. Sanchez

We show that the near horizon regime of a Kerr-Newman-$AdS$ (KN$AdS$) black hole, given by its two dimensional analogue $a la$ Robinson and Wilczek (2005 Phys. Rev. Lett. 95 011303), is asymptotically $AdS_2$ and dual to a one dimensional…

High Energy Physics - Theory · Physics 2011-07-20 Bradly K. Button , Leo Rodriguez , Catherine A. Whiting , Tuna Yildirim

Following the recent theory of Lovelock-Brans-Dicke gravity, we continue to investigate the conditions to support traversable wormholes by the gravitational effects of spacetime parity and topology, which arise from the nonminimal couplings…

General Relativity and Quantum Cosmology · Physics 2016-01-08 David Wenjie Tian

The C-metric in vacuum general relativity describes a pair of accelerated black holes supported by conical singularity. In this paper, we present a new family of exact solutions to the Einstein-phantom scalar system that describes…

General Relativity and Quantum Cosmology · Physics 2023-09-20 Masato Nozawa , Takashi Torii

We show that the presence of a nonminimal interaction between dark matter and dark energy may lead to a violation of the null energy condition and to the formation of a configuration with nontrivial topology (a wormhole). In this it is…

General Relativity and Quantum Cosmology · Physics 2014-03-11 Vladimir Folomeev , Vladimir Dzhunushaliev

We construct stationary non-equilibrium black funnels locally asymptotic to global AdS4 in vacuum Einstein-Hilbert gravity with negative cosmological constant. These are non-compactly-generated black holes in which a single connected bulk…

High Energy Physics - Theory · Physics 2013-03-07 Sebastian Fischetti , Donald Marolf , Jorge E. Santos

The approach of Gao, Jafferis, and Wall to perturbatively construct traversable wormholes has seen success in a number of black hole backgrounds, particularly BTZ and $AdS_2$, whereas historically most wormhole solutions have been either…

High Energy Physics - Theory · Physics 2023-04-18 Ryan Bilotta

We study charged, static, topological black holes in pure Gauss-Bonnet gravity in asymptotically AdS space. As in general relativity, the theory possesses a unique nondegenerate AdS vacuum. It also admits charged black hole solutions which…

High Energy Physics - Theory · Physics 2016-03-23 Ligeia Aránguiz , Xiao-Mei Kuang , Olivera Miskovic

Inspired by the hypothesis of the black hole molecule, with the help of the Hawking temperature, entropy and the thermodynamics curvature of the black hole, we propose a new measure of the relation between the interaction and the thermal…

General Relativity and Quantum Cosmology · Physics 2021-01-22 Zhen-Ming Xu , Bin Wu , Tao Yang , Wen-Li Yang

In this article, we study wormhole spacetimes in the framework of the static spherically symmetric SU(2) Einstein-Yang-Mills theory coupled to a phantom scalar field. We show rigorously the existence of an infinite sequence of symmetric…

Mathematical Physics · Physics 2024-09-17 Marko Sobak

For the higher-dimensional dS spacetime embedded with black holes with non-linear charges, there are two horizons with different radiation temperatures. By introducing the interplay between two horizons this system can be regarded as an…

High Energy Physics - Theory · Physics 2022-09-13 Yun-Zhi Du , Huai-Fan Li , Li-Chun Zhang

We have recently presented a geometry dual to a Schwinger-Keldysh closed time contour, with two equal $\beta/2$ length Euclidean sections, which can be thought of as dual to the Thermo Field Dynamics formulation of the boundary CFT. In this…

High Energy Physics - Theory · Physics 2019-04-08 Marcelo Botta-Cantcheff , Pedro J. Martínez , Guillermo A. Silva

In this work we explore the possible existence of static, spherically symmetric and stationary, axisymmetric traversable wormholes coupled to nonlinear electrodynamics. Considering static and spherically symmetric (2+1) and…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Aaron V. B. Arellano , Francisco S. N. Lobo

In this paper, we present an exponential modification for the action of an AdS black hole in the absence of a matter field. An approximated black hole solution is obtained up to the third order of perturbation coefficient. A thermodynamic…

High Energy Physics - Theory · Physics 2024-07-12 Mehdi Sadeghi , Faramarz Rahmani

This work investigates the semiclassical evolution of the Hawking atmosphere surrounding evaporating, spherically symmetric anti-de Sitter (adS) black holes. We model the evaporation process within a dynamical framework, treating the…

General Relativity and Quantum Cosmology · Physics 2026-05-26 A. F. Cardona , C. Molina

We study charged black hole and wormhole solutions of Type 0A/IIA string theory in two dimensions. There is a competition between Euclidean wormholes and near extremal black holes in the thermodynamic ensemble. In a certain regime of phase…

High Energy Physics - Theory · Physics 2023-12-06 Panos Betzios , Nava Gaddam , Olga Papadoulaki