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Št. zadetkov: 7
Generalized Couch-Torrence symmetry for rotating extremal black holes in maximal supergravity
Mirjam Cvetič, Christopher N. Pope, Aritra Saha
Izvirni znanstveni članek
Oznake: Kvantna logika;Fizika elementarnih delcev;Črne luknje;
he extremal Reissner-Nordstrom black hole admits a conformal inversion symmetry, in which the metric is mapped into itself under an inversion of the radial coordinate combined with a conformal rescaling. In the rotating generalization, Couch and Torrence showed that the Kerr- Newman metric no longer ...
Leto: 2020 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Conformal symmetries for extremal black holes with general asymptotic scalars in STU supergravity
Mirjam Cvetič, Christopher N. Pope, Aritra Saha
Izvirni znanstveni članek
Oznake: black holes;extended supersymmetry;supergravity models;string theory;
We present a construction of the most general BPS black holes of STU supergravity (N = 2 supersymmetric D = 4 supergravity coupled to three vector supermultiplets) with arbitrary asymptotic values of the scalar fields. These solutions are obtained by acting with a subset of the global symmetry gener ...
Leto: 2021 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Super-geometrodynamics
Mirjam Cvetič, G. W. Gibbons, Christopher N. Pope
Izvirni znanstveni članek
Oznake: black holes;supergravity;string theory;conformal field models;string duality;Kvantna logika;Fizika elementarnih delcev;
We present explicit solutions of the time-symmetric initial value constraints, expressed in terms of freely specifiable harmonic functions for examples of supergravity theories, which emerge as effective theories of compactified string theory. These results are a prerequisite for the study of the ti ...
Leto: 2015 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Compactifications of deformed conifolds, branes and the geometry of qubits
Mirjam Cvetič, G. W. Gibbons, Christopher N. Pope
Izvirni znanstveni članek
Oznake: Conformal Field Models;String Theory;Models of Quantum Gravity;Differential Geometry;Algebraic Geometry;
We present three families of exact, cohomogeneity-one Einstein metrics in (2n + 2) dimensions, which are generalizations of the Stenzel construction of Ricci-flat metrics to those with a positive cosmological constant. The first family of solutions are Fubini-Study metrics on the complex projective ...
Leto: 2016 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Gaussian null coordinates for rotating charged black holes and conserved charges
Mirjam Cvetič, Christopher N. Pope, Aritra Saha, Alejandro Satz
Izvirni znanstveni članek
Oznake: supergravitiy;flat spacetime;black hole;four-dimensional rotating;metrics;
Motivated by the study of conserved Aretakis charges for a scalar field on the horizon of an extremal black hole, we construct the metrics for certain classes of four-dimensional and five-dimensional extremal rotating black holes in Gaussian null coordinates. We obtain these as expansions in powers ...
Leto: 2020 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Electrodynamics of black holes in STU supergravity
Mirjam Cvetič, G. W. Gibbons, Christopher N. Pope, Zain H. Saleem
Izvirni znanstveni članek
Oznake: black holes;supergravity;string theory;conformal field models;string duality;Kvantna logika;Fizika elementarnih delcev;
External magnetic fields can probe the composite structure of black holes in string theory. With this motivation we study magnetised four-charge black holes in the STU model, a consistent truncation of maximally supersymmetric supergravity with four types of electromagnetic fields. We employ solutio ...
Leto: 2014 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Rotating solutions in critical Lovelock gravities
Mirjam Cvetič, Xing-Hui Feng, Hong Lü, Christopher N. Pope
Izvirni znanstveni članek
Oznake: astrophysics;nuclear physics;
For appropriate choices of the coupling constants, the equations of motion of Lovelock gravities up to order n in the Riemann tensor can be factorized such that the theories admit a single (A)dS vacuum. In this paper we construct two classes of exact rotating metrics in such critical Lovelock gravit ...
Leto: 2017 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Št. zadetkov: 7
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