Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sabra, Wafic A."'
Publikováno v:
JHEP 08 (2018) 121
Killing spinor identities relate components of equations of motion to each other for supersymmetric backgrounds. The only input required is the field content and the supersymmetry transformations of the fields, as long as an on-shell supersymmetrizat
Externí odkaz:
http://arxiv.org/abs/1806.04108
We construct a new class of solutions to the dispersionless hyper--CR equation, and show how any solution to this equation gives rise to a supersymmetric Einstein--Maxwell cosmological space--time in $(3+1)$--dimensions.
Comment: 5 pages
Comment: 5 pages
Externí odkaz:
http://arxiv.org/abs/1801.10013
We show that a class of solutions of minimal supergravity in five dimensions is given by lifts of three--dimensional Einstein--Weyl structures of hyper-CR type. We characterise this class as most general near--horizon limits of supersymmetric solutio
Externí odkaz:
http://arxiv.org/abs/1610.08953
Autor:
Sabra, Wafic A., Vaughan, Owen
We construct a 5D, N = 2 Euclidean theory of supergravity coupled to vector multiplets. Upon reducing this theory over a circle we recover the action of 4D, N = 2 Euclidean supergravity coupled to vector multiplets.
Comment: 13 pages
Comment: 13 pages
Externí odkaz:
http://arxiv.org/abs/1603.09244
Autor:
Taam, Maryam Bu, Sabra, Wafic A.
We discuss phantom metrics admitting Killing spinors in fake N=2, D=4 supergravity coupled to vector multiplets. The Abelian U(1) gauge fields in the fake theory have kinetic terms with the wrong sign. We solve the Killing spinor equations for the st
Externí odkaz:
http://arxiv.org/abs/1507.07721
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:
Sabra, Wafic, Vaughan, Owen
We dimensionally reduce the bosonic sector of 10D Euclidean type IIA supergravity over a Calabi-Yau three-fold. The resulting theory describes the bosonic sector of 4D, N = 2 Euclidean supergravity coupled to vector- and hyper-multiplets. We show tha
Externí odkaz:
http://arxiv.org/abs/1503.05095
Autor:
Gentile, Lorenzo G. C., Grassi, Pietro A., Marrani, Alessio, Mezzalira, Andrea, Sabra, Wafic A.
We analyze the fermionic wigging of 1/2-BPS (electric) extremal black hole attractors in N=2, D=5 ungauged Maxwell-Einstein supergravity theories, by exploiting anti-Killing spinors supersymmetry transformations. Regardless of the specific data of th
Externí odkaz:
http://arxiv.org/abs/1403.5097
We show how to lift solutions of Euclidean Einstein-Maxwell equations with non-zero cosmological constant to solutions of eleven-dimensional supergravity theory with non-zero fluxes. This yields a class of 11D metrics given in terms of solutions to $
Externí odkaz:
http://arxiv.org/abs/1301.1896
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 the possibility of a holographic c-theorem for the a-anomaly under flo
Externí odkaz:
http://arxiv.org/abs/1012.3382