Results 1 to 10 of about 775,871 (306)
Physical Review D, 1995 One would expect spacetime to have a foam-like structure on the Planck scale with a very high topology. If spacetime is simply connected (which is assumed in this paper), the non-trivial homology occurs in dimension two, and spacetime can be regarded as ...
F.J. Ernst +17 more
core +7 more sources
Holographic complexity of Born–Infeld black holes
European Physical Journal C: Particles and Fields, 2019 In this paper, according to CA duality, we study complexity growth of Born–Infeld (BI) black holes. As a comparison, we study action growth of dyonic black holes in Einstein–Maxwell gravity at the beginning.
Kun Meng
doaj +2 more sources
European Physical Journal C: Particles and Fields, 2019 We study some physical properties of black holes in Null Aether Theory (NAT) – a vector-tensor theory of gravity. We first review the black hole solutions in NAT and then derive the first law of black hole thermodynamics.
Metin Gürses +2 more
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Black hole solutions surrounded by perfect fluid in Rastall theory
Physics Letters B, 2017 In this work, we obtain uncharged∖charged Kiselev-like black holes as a new class of black hole solutions surrounded by perfect fluid in the context of Rastall theory.
Y. Heydarzade, F. Darabi
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Accreting fluids onto regular black holes via Hamiltonian approach
European Physical Journal C: Particles and Fields, 2017 We investigate the accretion of test fluids onto regular black holes such as Kehagias–Sfetsos black holes and regular black holes with Dagum distribution function. We analyze the accretion process when different test fluids are falling onto these regular
Abdul Jawad, M. Umair Shahzad
doaj +3 more sources
Isolated and Dynamical Horizons and Their Applications [PDF]
Living Reviews in Relativity, 2004 Over the past three decades, black holes have played an important role in quantum gravity, mathematical physics, numerical relativity and gravitational wave phenomenology.
Ashtekar Abhay, Krishnan Badri
doaj +11 more sources
Thermodynamic Black Holes. [PDF]
Entropy (Basel), 2018 Black holes pose great difficulties for theory since gravity and quantum theory must be combined in some as yet unknown way. An additional difficulty is that detailed black hole observational data to guide theorists is lacking.
Ruppeiner G.
europepmc +3 more sources
Spontaneously vectorized Einstein-Gauss-Bonnet black holes
Physics Letters B, 2021 We construct spontaneously vectorized black holes where a real vector field is coupled to the Gauss-Bonnet invariant. We employ three coupling functions for the vector field, and determine the respective domains of existence of the vectorized black holes.
Simon Barton +3 more
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Proceedings of the National Academy of Sciences, 2001 Recent progress in black hole research is illustrated by three examples. We discuss the observational challenges that were met to show that a supermassive black hole exists at the center of our galaxy. Stellar-size black holes have been studied in x-ray binaries and microquasars.
Brügmann, B., Ghez, A., Greiner, J.
openaire +3 more sources
Dirty Black Holes and Hairy Black Holes [PDF]
Physical Review Letters, 1996 An approach based on considerations of the non-classical energy momentum tensor outside the event horizon of a black hole provides additional physical insight into the nature of discrete quantum hair on black holes and its effect on black hole temperature. Our analysis both extends previous work based on the Euclidean action techniques, and corrects an
Krauss, Lawrence M. +2 more
openaire +4 more sources