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pro vyhledávání: '"Gutowski, Jan B."'
Autor:
Gutowski, Jan B., Sabra, Wafic A.
We consider a general analysis and a specific ansatz for the study of non-supersymmetric solutions in arbitrary dimensions and various metric signatures. In all cases, we find that the conditions on the solutions can be written in terms of quadratic
Externí odkaz:
http://arxiv.org/abs/1505.05963
Autor:
Gutowski, Jan B., Sabra, W. A.
Euclidean special geometry has recently been investigated in the context of Euclidean supersymmetric theories with vector multiplets. In the rigid case, the scalar manifold is described by affine special para-Kahler geometry while the target geometri
Externí odkaz:
http://arxiv.org/abs/1209.2029
Publikováno v:
Class. Quantum Grav. 29 (2012) 105006
The geometric structure of the null solutions of de Sitter D=5 gauged supergravity coupled to vector multiplets is investigated. These solutions are Kundt metrics, constructed from a one-parameter family of three dimensional Gauduchon-Tod base spaces
Externí odkaz:
http://arxiv.org/abs/1109.5257
Autor:
Gutowski, Jan B., Sabra, W. A.
Publikováno v:
Class.Quant.Grav.28:175023,2011
Recent results on the relation between hyper-Kahler geometry with torsion and solutions admitting Killing spinors in minimal de sitter supergravity are extended to more general supergravity models with vector multiplets.
Comment: 14 pages, latex
Comment: 14 pages, latex
Externí odkaz:
http://arxiv.org/abs/1009.4453
Autor:
Grover, Jai, Gutowski, Jan B., Herdeiro, Carlos A. R., Meessen, Patrick, Palomo-Lozano, Alberto, Sabra, Wafic A.
Publikováno v:
JHEP 0907:069,2009
Solutions of five-dimensional De Sitter supergravity admitting Killing spinors are considered, using spinorial geometry techniques. It is shown that the "null" solutions are defined in terms of a one parameter family of 3-dimensional constrained Eins
Externí odkaz:
http://arxiv.org/abs/0905.3047
We discuss the relation between solutions admitting Killing spinors of minimal supergravities in five dimensions and four dimensional complex geometries. In the ungauged case (vanishing cosmological constant \Lambda=0) the solutions are determined in
Externí odkaz:
http://arxiv.org/abs/0901.4066
Autor:
Gutowski, Jan B., Sabra, Wafic A.
Publikováno v:
Class.Quant.Grav.27:025003,2010
Spinorial geometry techniques have recently been used to classify all half supersymmetric solutions in gauged five dimensional supergravity with vector multiplets. In this paper we consider solutions for which at least one of the Killing spinors gene
Externí odkaz:
http://arxiv.org/abs/0807.3305
Publikováno v:
Nucl.Phys.B809:406-425,2009
Solutions of five dimensional minimal de Sitter supergravity admitting Killing spinors are considered. It is shown that the "timelike'' solutions are determined in terms of a four dimensional hyper-Kahler torsion (HKT) manifold. If the HKT manifold i
Externí odkaz:
http://arxiv.org/abs/0806.2626
Autor:
Gauntlett, Jerome P., Gutowski, Jan B.
Publikováno v:
JHEP 0806:053,2008
We study the recent construction of maximally supersymmetric field theory Lagrangians in three spacetime dimensions that are based on algebras with a triple product. Assuming that the algebra has a positive definite metric compatible with the triple
Externí odkaz:
http://arxiv.org/abs/0804.3078
We classify half-supersymmetric solutions of gauged N=2, D=5 supergravity coupled to an arbitrary number of abelian vector multiplets for which all of the Killing spinors generate null Killing vectors. We show that there are four classes of solutions
Externí odkaz:
http://arxiv.org/abs/0802.0231