Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Perz, Jan"'
We apply the H-FGK formalism to the study of some properties of the general class of black holes in N=2 supergravity in four dimensions that correspond to the harmonic and hyperbolic ansatze and obtain explicit extremal and non-extremal solutions for
Externí odkaz:
http://arxiv.org/abs/1212.0303
Publikováno v:
JHEP 1303:036,2013
We investigate the stabilisation equations for sufficiently general, yet regular, extremal (supersymmetric and non-supersymmetric) and non-extremal black holes in four-dimensional N=2 supergravity using both the H-FGK approach and a generalisation of
Externí odkaz:
http://arxiv.org/abs/1211.7295
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. We expla
Externí odkaz:
http://arxiv.org/abs/1204.0507
Publikováno v:
Phys.Lett. B709 (2012) 260-265
We rewrite the Ferrara-Gibbons-Kallosh (FGK) black-hole effective action of N=2, d=4,5 supergravities coupled to vector multiplets, replacing the metric warp factor and the physical scalars with real variables that transform in the same way as the ch
Externí odkaz:
http://arxiv.org/abs/1112.3332
We propose a generic recipe for deforming extremal black holes into non-extremal black holes and we use it to find and study the non-extremal black-hole solutions of several N=2,d=4 supergravity models (SL(2,R)/U(1), CPn and STU with four charges). I
Externí odkaz:
http://arxiv.org/abs/1105.3311
Publikováno v:
JHEP 1106:070,2011
We derive a generalised form of flow equations for extremal static and rotating non-BPS black holes in four-dimensional ungauged N = 2 supergravity coupled to vector multiplets. For particular charge vectors, we give stabilisation equations for the s
Externí odkaz:
http://arxiv.org/abs/1012.4020
Autor:
Galli, Pietro, Perz, Jan
Publikováno v:
JHEP 1002:102,2010
Using the superpotential approach we generalize Denef's method of deriving and solving first-order equations describing multicenter extremal black holes in four-dimensional N = 2 supergravity to allow non-supersymmetric solutions. We illustrate the g
Externí odkaz:
http://arxiv.org/abs/0909.5185
Publikováno v:
Fortsch.Phys.57:659-665,2009
For both extremal and non-extremal spherically symmetric black holes in theories with massless scalars and vectors coupled to gravity, we derive a general form of first-order gradient flow equations, equivalent to the equations of motion. For theorie
Externí odkaz:
http://arxiv.org/abs/0901.4539