Results 1 to 10 of about 5,775 (181)

α′-corrected black holes in String Theory [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractWe 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 ...
Pablo A Cano   +2 more
exaly   +3 more sources

Microscopic and macroscopic entropy of extremal black holes in string theory [PDF]

open access: yesGeneral Relativity and Gravitation, 2014
This is a short review summarizing the current status of the comparison between microscopic and macroscopic entropy of extremal BPS black holes in string theory.
Ashoke Sen, Sen Ashoke
exaly   +2 more sources

Non-Abelian black holes in string theory [PDF]

open access: yesJournal 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
doaj   +2 more sources

String scale black holes at large D

open access: yesJournal 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

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

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

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

Islands in Schwarzschild black holes

open access: yesJournal of High Energy Physics, 2020
We study the Page curve for asymptotically flat eternal Schwarzschild black holes in four and higher spacetime dimensions. Before the Page time, the entanglement entropy grows linearly in time.
Koji Hashimoto   +2 more
doaj   +1 more source

TASI lectures on black holes in string theory [PDF]

open access: yes, 2000
This is a write-up of introductory lectures on black holes in string theory given at TASI-99. Topics discussed include: Black holes, thermodynamics and the Bekenstein-Hawking entropy, the information problem; supergravity actions, conserved quantum ...
A.W. Peet
semanticscholar   +1 more source

Entropy of nonextreme charged rotating black holes in string theory. [PDF]

open access: yesPhysical Review D, Particles and fields, 1996
We give the explicit expression for four-dimensional rotating charged black hole solutions of N=4 (or N=8) superstring vacua, parameterized by the ADM mass, four charges (two electric and two magnetic charges, each arising from a different U(1) gauge ...
M. Cvetič, Donam Youm
semanticscholar   +1 more source

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