Journal ArticleDOI
Almost BPS black holes
TLDR
In this article, the authors studied non-BPS black hole solutions to ungauged supergravity with 8 supercharges coupled to vector multiplets in four and five dimensions, respectively.Abstract:
We study non-BPS black hole solutions to ungauged supergravity with 8 supercharges coupled to vector multiplets in four and five dimensions. We identify a large class of five dimensional non-BPS solutions, which we call ``almost BPS'', that are supersymmetric on local patches and satisfy a first order flow governed by harmonic functions. By dimensional reduction, they give rise to new non-BPS solutions in four dimensions. These solutions allow for some nontrivial asymptotic moduli and multiple centres, similar to their globally supersymmetric cousins. We explicitly discuss a single centre and a two centre example.read more
Citations
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Journal ArticleDOI
Global Structure of Five-dimensional BPS Fuzzballs
G.W. Gibbons,N.P. Warner +1 more
TL;DR: In this article, the authors describe and study families of BPS microstate geometries, namely, smooth, horizonless asymptotically-flat solutions to supergravity.
Journal ArticleDOI
Global structure of five-dimensional fuzzballs
TL;DR: In this paper, the authors describe and study families of BPS microstate geometries, namely, smooth, horizonless asymptotically-a t solutions to supergravity, and examine these solutions from the perspective of earlier attempts to nd solitonic solutions in gravity.
Posted Content
Resolving the Structure of Black Holes: Philosophizing with a Hammer
Iosif Bena,Nicholas P. Warner +1 more
TL;DR: In this article, a broad conceptual review of what we have learned about black holes and their microstate structure from the study of microstate geometries and their string theory limits is given.
Journal ArticleDOI
Non-extremal black hole microstates: fuzzballs of fire or fuzzballs of fuzz?
TL;DR: In this article, the authors constructed the first family of microstate geometries of near-extremal black holes, by placing metastable supertube probes inside certain scaling supersymmetric smooth microstate geometry, which differs from the classical black hole solution macroscopically at the horizon scale and for certain probes the fluctuations between various fuzzballs will be visible as thermal noise far away from the horizon.
Journal ArticleDOI
Non-BPS black rings and black holes in Taub-NUT
TL;DR: In this paper, the seed solution for the most general extremal non-BPS under-rotating black hole in four dimensions was proposed, which was later extended to extremal two-center black holes with generic charges.
References
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Journal ArticleDOI
N=2 extremal black holes.
TL;DR: It is shown that extremal magnetic black hole solutions of N=2 supergravity coupled to vector multiplets with a generic holomorphic prepotential F can be described as supersymmetric solitons which interpolate between maximally symmetric limiting solutions at spatial infinity and the horizon.
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Supersymmetry and attractors.
Sergio Ferrara,Renata Kallosh +1 more
TL;DR: The results provide an explicit model-independent expression for the macroscopic Bekenstein-Hawking entropy of {ital N}=2 black holes which is manifestly duality invariant.
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All supersymmetric solutions of minimal supergravity in five- dimensions
TL;DR: In this article, all purely bosonic supersymmetric solutions of minimal supergravity in five dimensions are classified, and explicit examples of new solutions are given, including a large family of plane-fronted waves and a maximally superymmetric analogue of the Godel universe which lifts to a solution of 11-dimensional supergravity that preserves 20 supersymmetries.
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Gravitational Multi - Instantons
TL;DR: In this article, a family of self-dual positive definite metrics which are asymptotic to Euclidean space modulo identifications under discrete subgroups of O(4) was presented.
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Black holes and critical points in moduli space
TL;DR: In this article, the authors studied the stabilization of scalars near a supersymmetric black hole horizon using the equation of motion of a particle moving in a potential and background metric, and they showed that extremal value of the central charge provides the minimal value of BPS mass and of the potential under the condition that the moduli space metric is positive at the critical point.