Results 21 to 30 of about 119,004,954 (182)
Extremal black holes, Stueckelberg scalars and phase transitions
Journal of High Energy Physics, 2018 We calculate the entropy of a static extremal black hole in 4D gravity, non-linearly coupled to a massive Stueckelberg scalar. We find that the scalar field does not allow the black hole to be magnetically charged.
Alessio Marrani +2 more
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The multipolar structure of fuzzballs
Journal 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
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Gravitational footprints of black holes and their microstate geometries
Journal 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
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Aspects of Topological String Theory [PDF]
, 2008 Two aspects of the topological string and its applications are considered in this thesis. Firstly, non-perturbative contributions to the OSV conjecture relating four-dimensional extremal black holes and the closed topological string partition function ...
Cook, Paul Langabi Hogan
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Black holes lessons from multipole ratios
Journal of High Energy Physics, 2021 We explain in detail how to calculate the gravitational mass and angular momentum multipoles of the most general non-extremal four-dimensional black hole with four magnetic and four electric charges.
Iosif Bena, Daniel R. Mayerson
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Islands in linear dilaton black holes
Journal of High Energy Physics, 2021 We derive a novel four-dimensional black hole with planar horizon that asymptotes to the linear dilaton background. The usual growth of its entanglement entropy before Page’s time is established.
Georgios K. Karananas +2 more
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Microscopic Calabi-Yau Black Holes in String Theory [PDF]
, 2011 In this thesis we study microscopic aspects of Calabi-Yau black holes in string theory. We compute the absorption cross-section of the space-time massless scalars by the world-volume of D2-branes, wrapped on the S2 of an AdS_2 x S^2 x CY_3 geometry of a ...
Ansari, Saeid
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Journal 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
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A stringy glimpse into the black hole horizon
Journal 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
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Asymptotic quasinormal modes of string-theoretical d-dimensional black holes
Journal of High Energy Physics, 2021 We compute the quasinormal frequencies of d-dimensional spherically symmetric black holes with leading string α′ corrections for tensorial gravitational perturbations in the highly damped regime.
Filipe Moura, João Rodrigues
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