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Non-Abelian black holes in string theory [PDF]
Journal of High Energy Physics, 2017 We study a family of 5-dimensional non-Abelian black holes that can be obtained by adding an instanton field to the well-known D1D5W Abelian black holes. Naively, the non-Abelian fields seem to contribute to the black-hole entropy but not to the mass due
Pablo A. Cano +3 more
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α′-corrected black holes in String Theory [PDF]
Journal of High Energy Physics, 2018 Abstract We consider the well-known solution of the Heterotic Superstring effective action to zeroth order in α ′ that describes the intersection of a fundamental string with momentum and a solitonic 5-brane and which gives a 3-charge, static, extremal, supersymmetric black hole in 5 dimensions upon dimensional ...
Tomáš Ortin +2 more
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Separability of black holes in string theory [PDF]
Journal of High Energy Physics, 2012 We analyze the origin of separability for rotating black holes in string theory, considering both massless and massive geodesic equations as well as the corresponding wave equations. We construct a conformal Killing-Stackel tensor for a general class of black holes with four independent charges, then identify two-charge configurations where enhancement
Cynthia Keeler
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String scale black holes at large D
Journal of High Energy Physics, 2022 We study aspects of black holes near the Hagedorn temperature. The large dimension expansion introduced by Soda, Emparan, Grumiller and Tanabe connects them to the well studied two dimensional black hole based on SL(2) k /U(1).
Yiming Chen, Juan Maldacena
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On small black holes in string theory
Journal of High Energy PhysicsA bstract We discuss the worldsheet sigma-model whose target space is the d +1 dimensional Euclidean Schwarzschild black hole. We argue that in the limit where the Hawking temperature of the black hole,
David Kutasov, Jinwei Chu
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A stringy effect on Hawking radiation
Journal 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
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Hairy black holes in string theory [PDF]
Physical Review D, 1994 Solutions of bosonic string theory are constructed which correspond to four-dimensional black holes with axionic quantum hair. The basic building blocks are the renormalization group flows of the CP1 model with a theta term and the SU(1,1)/U(1) WZW coset conformal field theory.
Giddings, S. B. +4 more
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On the evaporation of black holes in string theory [PDF]
Physics Letters B, 1992 We show that, in string theory, the quantum evaporation and decay of black holes in two-dimensional target space is related to imaginary parts in higher-genus string amplitudes. These arise from the regularisation of modular infinities due to the sum over world-sheet configurations, that are known to express the instabilities of massive string states ...
Ellis, J. +2 more
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On the nonexistence of a vacuum black lens
Journal 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
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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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