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We explore time-symmetric hypersurfaces containing apparent horizons of black objects in a 5d spacetime with one coordinate compactified on a circle. We find a phase transition within the family of such hypersurfaces: the horizon has…

High Energy Physics - Theory · Physics 2009-11-07 Evgeny Sorkin , Tsvi Piran

In the presence of compact dimensions massive solutions of General Relativity may take one of several forms including the black-hole and the black-string, the simplest relevant background being R^{3+1} * S^1. It is shown how Morse theory…

High Energy Physics - Theory · Physics 2009-11-07 Barak Kol

We numerically construct static localized black holes in five and six spacetime dimensions which are solutions to Einstein's vacuum field equations with one compact periodic dimension. In particular, we investigate the critical regime in…

General Relativity and Quantum Cosmology · Physics 2017-09-20 Michael Kalisch , Sebastian Moeckel , Martin Ammon

The properties of higher-dimensional black holes can differ significantly from those of black holes in four dimensions, since neither the uniqueness theorem, nor the staticity theorem or the topological censorship theorem generalize to…

High Energy Physics - Theory · Physics 2008-11-26 Burkhard Kleihaus , Jutta Kunz , Francisco Navarro-Lerida

We consider properties of near-critical solutions describing a test static axisymmetric D-dimensional brane interacting with a bulk N-dimensional black hole (N>D). We focus our attention on the effects connected with curvature corrections…

High Energy Physics - Theory · Physics 2009-01-21 Valeri P. Frolov , Dan Gorbonos

We propose a toy model for study merger transitions in a curved spaceime with an arbitrary number of dimensions. This model includes a bulk N-dimensional static spherically symmetric black hole and a test D-dimensional brane interacting…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Valeri P. Frolov

We investigated a two-dimensional superfluid model immersed in a black hole spacetime and hypothesize that if a black hole collides with a thin superfluid film, it will trigger a topological phase transition within the superfluid,…

General Relativity and Quantum Cosmology · Physics 2026-03-19 Cristian R. Ghezzi , Paulo S. Custodio

Near-horizon symmetries are studied for black hole solutions to Einstein equations containing supertranslation field constructed by Compere and Long. The metric is transformed to variables in which the horizon is located at the surface…

General Relativity and Quantum Cosmology · Physics 2019-04-02 Mikhail Z. Iofa

We find the first binary black hole event horizon with a toroidal topology. It had been predicted that generically the event horizons of merging black holes should briefly have a toroidal topology, but such a phase has never been seen prior…

General Relativity and Quantum Cosmology · Physics 2016-09-07 Andy Bohn , Lawrence E. Kidder , Saul A. Teukolsky

We study the evolution of black hole collisions and ultraspinning black hole instabilities in higher dimensions. These processes can be efficiently solved numerically in an effective theory in the limit of large number of dimensions D. We…

High Energy Physics - Theory · Physics 2019-09-17 Tomas Andrade , Roberto Emparan , David Licht , Raimon Luna

We study curvature invariants in a binary black hole merger. It has been conjectured that one could define a quasi-local and foliation independent black hole horizon by finding the level--$0$ set of a suitable curvature invariant of the…

General Relativity and Quantum Cosmology · Physics 2022-06-16 Jeremy M. Peters , Alan Coley , Erik Schnetter

We classify all pseudo-supersymmetric near horizon geometries of extremal black holes in five dimensional de-Sitter supergravity coupled to vector multiplets. We find that there are three types of solution. The first type corresponds to the…

High Energy Physics - Theory · Physics 2015-05-20 J. B. Gutowski , W. A. Sabra

We investigate the dynamics of the geometric transitions associated to compactified spacetimes. By including the dynamics of gravity we are able to follow the evolution of collapsing cycles as they attempt to undergo a topology changing…

High Energy Physics - Theory · Physics 2009-06-10 Neil A. Butcher , Paul M. Saffin

The understanding of strong-field dynamics near black-hole horizons is a long-standing and challenging prob- lem in general relativity. Recent advances in numerical relativity and in the geometric characterization of black- hole horizons…

General Relativity and Quantum Cosmology · Physics 2012-05-08 José Luis Jaramillo , Rodrigo P. Macedo , Philipp Moesta , Luciano Rezzolla

Configurations of multiple concentric black rings play an important role in determining the pattern of branchings, connections and mergers between different phases of higher-dimensional black holes. We examine them using both approximate…

High Energy Physics - Theory · Physics 2010-11-11 Roberto Emparan , Pau Figueras

We construct static vacuum localized black holes and non-uniform black strings in ten spacetime dimensions, where one of the dimension is compactified on circle. We study the phase diagram of black objects with these boundary conditions,…

High Energy Physics - Theory · Physics 2018-11-27 Biel Cardona , Pau Figueras

We numerically construct static localized black holes in ten spacetime dimensions with one compact periodic dimension. In particular, we investigate the critical regime in which the poles of the localized black hole are about to merge. When…

High Energy Physics - Theory · Physics 2018-12-05 Martin Ammon , Michael Kalisch , Sebastian Moeckel

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

Massive gravities in anti-de Sitter spacetime can be viewed as effective dual field theories of different phases of condensed matter systems with broken translational symmetry such as solids, (perfect) fluids, and liquid crystals. Motivated…

High Energy Physics - Theory · Physics 2020-09-18 A. Dehghani , S. H. Hendi , R. B. Mann

Thermodynamics of black holes in anti de Sitter (AdS) spacetimes typically contains critical points in the phase diagram, some of which correspond to the first order transition ending in a second order one. Following the recent proposal in…

General Relativity and Quantum Cosmology · Physics 2022-06-08 Pavan Kumar Yerra , Chandrasekhar Bhamidipati
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