313 citations · 2.9k across the 117 of their papers we have counts for
6 papers · 2 filters
Holographic c-theorems and higher derivative gravity
James T. Liu, Wafic Sabra, Zhichen Zhao
In AdS/CFT, the holographic Weyl anomaly computation relates the a-anomaly coefficient to the properties of the bulk action at the UV fixed point. This universal behavior suggests…
Towards Cosmological Black Rings
J. B. Gutowski, W. A. Sabra
We classify all pseudo-supersymmetric near horizon geometries of extremal black holes in five dimensional de-Sitter supergravity coupled to vector multiplets. We find that there ar…
Cosmological Einstein-Maxwell Instantons and Euclidean Supersymmetry: Beyond Self-Duality
M. Dunajski, J. B. Gutowski, W. A. Sabra +1
We construct new supersymmetric solutions to the Euclidean Einstein-Maxwell theory with a non-vanishing cosmological constant, and for which the Maxwell field strength is neither s…
HKT Geometry and Fake Five Dimensional Supergravity
Jan B. Gutowski, W. A. Sabra
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 sup…
Gravitational Instantons and Euclidean Supersymmetry
J. B. Gutowski, W. A. Sabra
Supersymmetric instanton solutions in four dimensional Euclidean ungauged Einstein-Maxwell theory are analysed and classified according to the fraction of supersymmetry they preser…
Cosmological Einstein-Maxwell Instantons and Euclidean Supersymmetry: Anti-Self-Dual Solutions
Maciej Dunajski, Jan Gutowski, Wafic Sabra +1
We classify super-symmetric solutions of the minimal gauged Euclidean supergravity in four dimensions. The solutions with anti-self-dual Maxwell field give rise to anti-self-…