Results 31 to 40 of about 70,107 (293)
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 dynamics on complex networks: Analytic solutions [PDF]
Physical Review E, 2005 The Bak-Sneppen model displaying punctuated equilibria in biological evolution is studied on random complex networks. By using the rate equation and the random walk approaches, we obtain the analytic solution of the fitness threshold $x_c$ to be 1/(_f+1), where _f=/ (=) in the quenched (annealed) updating case, where is the n-th moment of the degree ...
Masuda, N., Goh, K. -I., Kahng, B.
openaire +3 more sources
Black holes and black strings of N=2, d=5 supergravity in the H-FGK formalism [PDF]
, 2012 We study general classes and properties of extremal and non-extremal static black-hole solutions of N=2, d=5 supergravity coupled to vector multiplets using the recently proposed H-FGK formalism, which we also extend to static black strings.
A Antonio Martın de +58 more
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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.
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Sequences of extremal radially excited rotating black holes
, 2013 In Einstein-Maxwell-Chern-Simons theory the extremal Reissner-Nordstr\"om solution is no longer the single extremal solution with vanishing angular momentum, when the Chern-Simons coupling constant reaches a critical value.
Blazquez-Salcedo, Jose Luis +3 more
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Mirror effect induced by the dilaton field on the Hawking radiation [PDF]
, 2005 We discuss the string creation in the near-extremal NS1 black string solution. The string creation is described by an effective field equation derived from a fundamental string action coupled to the dilaton field in a conformally invariant manner. In the
Boonstra H J +8 more
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New Phases of Near-Extremal Branes on a Circle
, 2004 We study the phases of near-extremal branes on a circle, by which we mean near-extremal branes of string theory and M-theory with a circle in their transverse space. We find a map that takes any static and neutral Kaluza-Klein black hole, i.e. any static
+44 more
core +4 more sources
On Extremal Limits and Duality Orbits of Stationary Black Holes [PDF]
, 2013 With reference to the effective three-dimensional description of stationary, single center solutions to (ungauged) symmetric supergravities, we complete a previous analysis on the definition of a general geometrical mechanism for connecting global ...
Andrianopoli, Laura +2 more
core +1 more source