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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 +2 more
exaly +3 more sources
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
exaly +5 more sources
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
doaj +2 more sources
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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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
doaj +1 more source
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
openaire +3 more sources
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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Spontaneous scalarization in (A)dS gravity at zero temperature
Journal 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
An entropy current for dynamical black holes in four-derivative theories of gravity
Journal 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
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Black-hole–wave duality in string theory [PDF]
Physical Review D, 1994 12 pages, LaTeX, preprint UG-3/94, SU-ITP-94-11, QMW-PH-94 ...
Bergshoeff, Eric +2 more
openaire +5 more sources