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We construct explicit examples of microstate geometries of four-dimensional black holes that lift to smooth horizon-free geometries in five dimensions. Solutions consist of half-BPS D-brane atoms distributed in $\mathbb{R}^3$. Charges and…

High Energy Physics - Theory · Physics 2017-07-05 Massimo Bianchi , Jose Francisco Morales , Lorenzo Pieri , Natale Zinnato

Black hole generalized p-brane solutions for a wide class of intersection rules are presented. The solutions are defined on a manifold that contains a product of n - 1 Ricci-flat internal spaces. They are defined up to moduli functions H_s…

General Relativity and Quantum Cosmology · Physics 2009-04-17 V. D. Ivashchuk , V. N. Melnikov

We discuss black hole spacetimes with a geometrically defined quasi-local horizon on which the curvature tensor is algebraically special relative to the alignment classification. Based on many examples and analytical results, we conjecture…

General Relativity and Quantum Cosmology · Physics 2017-10-25 Alan A. Coley , David D. McNutt , Andrey A. Shoom

We find rotating black hole solutions in the Randall-Sundrum II (RSII) model, by numerically solving a three-dimensional PDE problem using pseudospectral collocation methods. We compute the area and equatorial inner-most stable orbits of…

High Energy Physics - Theory · Physics 2022-01-19 William D. Biggs , Jorge E. Santos

We study brane-world models with variable brane tension and compute corrections to the horizon of a black string along the extra dimension. The four-dimensional geometry of the black string on the brane is obtained by means of the minimal…

General Relativity and Quantum Cosmology · Physics 2015-01-21 Roberto Casadio , Jorge Ovalle , Roldao da Rocha

We derive static spherically-symmetric vacuum solutions of the low-energy effective action for the two brane Randall-Sundrum model. The solutions with non-trivial radion belong to a one-parameter family describing traversable wormholes…

High Energy Physics - Theory · Physics 2008-11-26 Paul L. McFadden , Neil Turok

We consider a 3-brane embedded in a warped 5-dimensional background with a dilaton and a Kalb-Ramond 2-form. We show that it is possible to find static solutions of the form of charged dS/AdS-like black hole with horizon which could have a…

High Energy Physics - Theory · Physics 2008-11-26 G. De Risi

We extend our recent discussion of four-dimensional black holes bound to a two-brane to include a negative cosmological constant on the brane. We find that for large masses, the solutions are precisely BTZ black holes on the brane, and BTZ…

High Energy Physics - Theory · Physics 2009-10-31 Roberto Emparan , Gary T. Horowitz , Robert C. Myers

Large extra dimensions have been proposed as a possible solution to the hierarchy problem in physics. One of the suggested models, the RS2 braneworld model, makes a prediction that black holes evaporate by Hawking radiation on a short…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-05 Oleg Y. Gnedin , Thomas J. Maccarone , Dimitrios Psaltis , Stephen E. Zepf

We study systems with a large number of meta-stable Dp-branes, and show that they describe Schwarzschild and Schwarzschild-like black branes, generalizing the results of Danielsson, Guijosa and Kruczenski. The systems are considered in both…

High Energy Physics - Theory · Physics 2009-11-10 Oren Bergman , Gilad Lifschytz

Motivated by stringy considerations, Randall & Sundrum have proposed a model where all the fields and particles of physics, save gravity, are confined on a 4-dimensional brane embedded in 5-dimensional anti-deSitter space. Their scenario…

High Energy Physics - Theory · Physics 2015-06-26 Sanjeev S. Seahra

Black hole generalized p-brane solutions for a wide class of intersection rules are obtained. The solutions are defined on a manifold that contains a product of n - 1 Ricci-flat ``internal'' spaces. They are defined up to a set of functions…

High Energy Physics - Theory · Physics 2007-05-23 V. D. Ivashchuk , V. N. Melnikov

There has been substantial interest in obtaining a quantum-gravitational description of de Sitter space. However, any such attempts have encountered formidable obstacles, and new philosophical directions may be in order. One possibility,…

High Energy Physics - Theory · Physics 2007-05-23 A. J. M. Medved

New exact asymptotically flat solutions of five-dimensional Einstein equations with horizon are found to describe multidimensional black stars generated by matter on the brane, conceivably on high energy colliders. The five-dimensional…

High Energy Physics - Theory · Physics 2010-12-13 A. A. Andrianov , M. A. Kurkov

It is known that the Einstein field equations in five dimensions admit more general spherically symmetric black holes on the brane than four-dimensional general relativity. We propose two families of analytic solutions (with…

General Relativity and Quantum Cosmology · Physics 2010-04-06 Roberto Casadio , Alessandro Fabbri , Lorenzo Mazzacurati

In this paper, we propose a model based on wedge holography that can describe the multiverse. In wedge holography, we consider two gravitating baths, one of which has strong gravity and the other one has weak gravity. To describe a…

High Energy Physics - Theory · Physics 2023-03-22 Gopal Yadav

In this work we consider electromagnetic dynamics in Randall-Sundrum branes. It is derived a family of four-dimensional spacetimes compatible with Randall-Sundrum brane worlds, focusing on asymptotic flat backgrounds. Maximal extensions of…

General Relativity and Quantum Cosmology · Physics 2016-08-02 C. Molina , A. B. Pavan , T. E. Medina Torrejón

We extend some solutions for black holes in the Randall-Sundrum theory with a single brane. We consider a generalised version of the extremal black hole on the brane in n + 1 dimensions and determine an asymptotic value of the geometry for…

General Relativity and Quantum Cosmology · Physics 2017-12-27 Michael Meiers , Luke Bovard , Robert Mann

We present solutions of the low-energy four-dimensional heterotic string corresponding to $p$-branes with $p=0,1,2$, which are characterized by a mass per unit $p$-volume, ${\cal M}_{p+1}$, and topological ``magnetic'' charge, $g_{p+1}$. In…

High Energy Physics - Theory · Physics 2011-07-19 M. J. Duff , Ramzi R. Khuri , Ruben Minasian , Joachim Rahmfeld

We study O($N+1$) nonlinear $\sigma$-model in $(p+1+N)$-dimensional curved spacetime with negative cosmological constant, and find a new $\sigma$-lump solution with half-integer winding and divergent energy. When the spatial structure of…

High Energy Physics - Theory · Physics 2009-11-10 Donghyun Kim , Yoonbai Kim , JungJai Lee