Results 11 to 20 of about 57,690 (307)

Dual Heterotic Black-Holes in Four and Two Dimensions [PDF]

, 1998
We consider a class of extremal and non-extremal four-dimensional black-hole solutions occuring in toroidally compactified heterotic string theory, whose ten-dimensional interpretation involves a Kaluza-Klein monopole and a five-brane. We show that these
Bakas, Behrndt, Behrndt, Bianchi, Cvetič, Cvetič, Cvetič, Ferrara, Gabriel Lopes Cardoso, Harvey, Horne, Ishibashi, Johnson, McGuigan, Nappi, Sen, Sfetsos, Sfetsos, Thomas Mohaupt   +18 more
core   +4 more sources

Iterative technique for third-order differential equation with three-point nonlinear boundary value conditions

Electronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, we study the existence of extremal solutions for a nonlinear third-order differential equation with three-point nonlinear boundary value conditions.
Xiuli Lin, Zengqin Zhao
doaj   +1 more source

Non-minimally coupled multi-scalar black holes [PDF]

, 2007
We study the static, spherically symmetric black hole solutions for a non-minimally coupled multi-scalar theory. We find numerical solutions for values of the scalar fields when a certain constraint on the maximal charge is satisfied.
Alex B. Nielsen, Ben M. Leith, K. A. Bronnikov   +2 more
core   +1 more source

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.
openaire   +3 more sources

Non-extremal Localised Branes and Vacuum Solutions in M-Theory [PDF]

, 1998
Non-extremal overlapping p-brane supergravity solutions localised in their relative transverse coordinates are constructed. The construction uses an algebraic method of solving the bosonic equations of motion.
Aref'eva I Ya, Aref'eva I Ya, Aref'eva I Ya, Arefeva I, Behrndt K, Bergshoeff E, de Boer J, Edelstein J, Gal'tsov D V, Gauntlett J P Intersecting branes, Gibbons G W, Giveon A, Gomes C, Guven R, Horowitz G T, I V Volovich, I Ya Aref'eva, Ivanov M G, Ivashchuk V D, Ivashchuk V D, Ivashchuk V D, Lavrinenko I V, Lu H, M G Ivanov, O A Rytchkov, Sen A An introduction to non-perturbative string theory, Stelle K S, Townsend P K, Tseytlin A A   +28 more
core   +3 more sources

Non-BPS black branes in M-theory over Calabi-Yau threefolds. (Non-)uniqueness and recombination of non-BPS black strings in single modulus CICY and THCY models

Journal of High Energy Physics, 2022
We study extremal solutions arising in M-theory compactifications on Calabi-Yau threefolds, focussing on non-BPS attractors for their importance in relation to the Weak Gravity Conjecture (WGC); M2 branes wrapped on two-cycles give rise to black holes ...
Alessio Marrani, Anshul Mishra, Prasanta K. Tripathy   +2 more
doaj   +1 more source

Two kissing bolts

Journal of High Energy Physics, 2018
The study of non-supersymmetric black hole microstates offers the potential to resolve the black hole information paradox. A system of equations was recently obtained that enables the systematic construction of non-supersymmetric smooth horizonless ...
Guillaume Bossard, Stefanos Katmadas, David Turton   +2 more
doaj   +1 more source

Non-extremal D-instantons [PDF]

, 2004
We construct the most general non-extremal deformation of the D-instanton solution with maximal rotational symmetry. The general non-supersymmetric solution carries electric charges of the SL(2,R) symmetry, which correspond to each of the three conjugacy
A Collinucci, D Roest, D.H. Coule, E Bergshoeff, E. Bergshoeff, E. Bergshoeff, E. Bergshoeff, E. Bergshoeff, G.W. Gibbons, H.J. Boonstra, J.Y. Kim, K. Behrndt, M.B. Einhorn, P.K. Townsend, S Vandoren, U Gran, U. Theis   +16 more
core   +3 more sources

Einstein-Maxwell-scalar black holes: classes of solutions, dyons and extremality

Journal of High Energy Physics, 2019
Spherical black hole (BH) solutions in Einstein-Maxwell-scalar (EMS) models wherein the scalar field is non-minimally coupled to the Maxwell invariant by some coupling function are discussed. We suggest a classification for these models into two classes,
D. Astefanesei, C. Herdeiro, A. Pombo, E. Radu   +3 more
doaj   +1 more source

Iterative technique for coupled integral boundary value problem of non-integer order differential equations

Advances in Difference Equations, 2017
This article is concerned to the investigation of extremal solutions for a system of fractional order differential equations with coupled integral boundary value problem.
Yongjin Li, Kamal Shah, Rahmat Ali Khan
doaj   +1 more source