Results 21 to 30 of about 2,223 (301)
Energy loss at zero temperature from extremal black holes
European Physical Journal C: Particles and Fields, 2018 Using the AdS/CFT correspondence, we probe the extremal black holes by studying the energy loss of a moving heavy point particle in a strongly-coupled boundary field theory at zero temperature and finite charge density. We first consider the extremal AdS-
Moslem Ahmadvand +1 more
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Gradient flow of Einstein-Maxwell theory and Reissner-Nordström black holes
Journal of High Energy Physics, 2023 Ricci flow is a natural gradient flow of the Einstein-Hilbert action. Here we consider the analog for the Einstein-Maxwell action, which gives Ricci flow with a stress tensor contribution coupled to a Yang-Mills flow for the Maxwell field.
Davide De Biasio +3 more
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Extremal Solutions for a Class of Unilateral Problems
Zeitschrift für Analysis und ihre Anwendungen, 2002 We apply a fixed point theorem for increasing operators in ordered Banach spaces to prove the existence of extremal (i.e. maximal or minimal) solutions for the variational inequality \langle Av, w – v\rangle ≥ \int _\Omega f(x, v)(w–v)dx where A
Huy, N. B., Thanh, N. D., Thanh, T. D.
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Non-extremal, α′-corrected black holes in 5-dimensional heterotic superstring theory
Journal of High Energy Physics, 2022 We compute the first-order α′ corrections of the non-extremal Strominger-Vafa black hole and its non-supersymmetric counterparts in the framework of the Bergshoeff-de Roo formulation of the heterotic superstring effective action.
Pablo A. Cano +3 more
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Extremal Black Holes as Exact String Solutions [PDF]
Physical Review Letters, 1994 13 pages, harvmac, Imperial/TP/93-94/51, UCSBTH-94-24 (references added)
Horowitz, Gary T., Tseytlin, A. A.
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Basic theory of nonlinear third-order q-difference equations and inclusions
Mathematical Modelling and Analysis, 2013 We investigate the existence of solutions for boundary value problems of the third-order q-difference equations and inclusions. Our results are based on some standard fixed point theorems.
Bashir Ahmad, Juan Jose Nieto
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On the geodesics for a spherically symmetric dilaton black hole [PDF]
Serbian Astronomical Journal, 1998 In this paper we shall investigate the timelike geodesics for an extremal, spherically symmetric, massless dilaton black hole, using an exact solution obtained by Gary Horowitz.
Blaga C., Blaga P.A.
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A neighboring extremal solution for an optimal switched impulsive control problem [PDF]
, 2012 This paper presents a neighboring extremal solution for a class of optimal switched impulsive control problems with perturbations in the initial state, terminal condition and system's parameters. The sequence of mode's switching is pre-specified, and the
Loxton, Ryan +3 more
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From rotating to charged black holes and back again
Journal of High Energy Physics, 2022 The mild form of the Weak Gravity Conjecture (WGC) requires higher derivative corrections to extremal charged black holes to increase their charge-to-mass ratio. This allows decay via emission of a smaller extremal black hole.
Lars Aalsma, Gary Shiu
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Magnetized Kerr-Taub-NUT spacetime and Kerr/CFT correspondence
Physics Letters B, 2021 We present a new solution in Einstein-Maxwell theory which can be considered as the magnetized version of Kerr-Taub-NUT solution. Some properties of the spacetime are discussed. We also compute the entropy of extremal black hole in the spacetime by using
Haryanto M. Siahaan
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