Results 1 to 10 of about 94,999 (192)

A stringy effect on Hawking radiation

open access: yesJournal of High Energy Physics, 2023
In string theories, interactions are exponentially suppressed for trans-Planckian space-like external momenta. We study a class of quantum field theories that exhibit this feature modeled after Witten’s bosonic open string field theory, and discover a ...
Pei-Ming Ho   +3 more
doaj   +1 more source

On the nonexistence of a vacuum black lens

open access: yesJournal of High Energy Physics, 2021
We demonstrate that five-dimensional, asymptotically flat, stationary and bi-axisymmetric, vacuum black holes with lens space L(n, 1) topology, possessing the simplest rod structure, do not exist.
James Lucietti, Fred Tomlinson
doaj   +1 more source

The multipolar structure of fuzzballs

open access: yesJournal of High Energy Physics, 2021
We extend and refine a general method to extract the multipole moments of arbitrary stationary spacetimes and apply it to the study of a large family of regular horizonless solutions to N $$ \mathcal{N} $$ = 2 four-dimensional supergravity coupled to ...
Massimo Bianchi   +5 more
doaj   +1 more source

Spontaneous scalarization in (A)dS gravity at zero temperature

open access: yesJournal of High Energy Physics, 2022
We study spontaneous scalarization of electrically charged extremal black holes in D ≥ 4 spacetime dimensions. Such a phenomenon is caused by the symmetry breaking due to quartic interactions of the scalar — Higgs potential and Stueckelberg interaction ...
Alessio Marrani   +2 more
doaj   +1 more source

Two kissing bolts

open access: yesJournal of High Energy Physics, 2018
The study of non-supersymmetric black hole microstates offers the potential to resolve the black hole information paradox. A system of equations was recently obtained that enables the systematic construction of non-supersymmetric smooth horizonless ...
Guillaume Bossard   +2 more
doaj   +1 more source

A stringy glimpse into the black hole horizon

open access: yesJournal of High Energy Physics, 2018
We elaborate on the recent claim [1] that non-perturbative effects in α′, which are at the core of the FZZ duality, render the region just behind the horizon of the SL(2, ℝ) k /U(1) black hole singular already at the classical level (g s = 0).
Nissan Itzhaki, Lior Liram
doaj   +1 more source

State-space Manifold and Rotating Black Holes [PDF]

open access: yes, 2010
We study a class of fluctuating higher dimensional black hole configurations obtained in string theory/ $M$-theory compactifications. We explore the intrinsic Riemannian geometric nature of Gaussian fluctuations arising from the Hessian of the coarse ...
A Belhaj   +116 more
core   +1 more source

An entropy current for dynamical black holes in four-derivative theories of gravity

open access: yesJournal of High Energy Physics, 2020
We propose an entropy current for dynamical black holes in a theory with arbitrary four derivative corrections to Einstein’s gravity, linearized around a stationary black hole.
Jyotirmoy Bhattacharya   +3 more
doaj   +1 more source

Towards a Full Quantum Theory of Black Holes [PDF]

open access: yes, 1998
This review gives an introduction to various attempts to understand the quantum nature of black holes. The first part focuses on thermodynamics of black holes, Hawking radiation, and the interpretation of entropy.
Kiefer, Claus
core   +2 more sources

Gravitational footprints of black holes and their microstate geometries

open access: yesJournal of High Energy Physics, 2021
We construct a family of non-supersymmetric extremal black holes and their horizonless microstate geometries in four dimensions. The black holes can have finite angular momentum and an arbitrary charge-to-mass ratio, unlike their supersymmetric cousins ...
Ibrahima Bah   +4 more
doaj   +1 more source

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