HKT geometry and de Sitter supergravity
نویسندگان
چکیده
منابع مشابه
De Sitter Space in Supergravity and M Theory
Two ways in which de Sitter space can arise in supergravity theories are discussed. In the first, it arises as a solution of a conventional supergravity, in which case it necessarily has no Killing spinors. For example, de Sitter space can arise as a solution of N = 8 gauged supergravities in four or five dimensions. These lift to solutions of 11-dimensional supergravity or D = 10 IIB supergrav...
متن کاملConsistent reductions of IIB∗/M∗ theory and de Sitter supergravity
We construct consistent non-linear Kaluza Klein reduction ansatze for a subset of fields arising from the reduction of IIB∗ and M∗ theory on dS5 ×H5 and dS4×AdS7, respectively. These reductions yield four and five-dimensional de Sitter supergravities, albeit with wrong sign kinetic terms. We also demonstrate that the ansatze may be used to lift multi-centered de Sitter black hole solutions to t...
متن کاملAnti - de Sitter Black Holes in Gauged N = 8 Supergravity
We present new anti-de Sitter black hole solutions of gauged N = 8, SO(8) supergravity, which is the massless sector of the AdS4×S vacuum of M-theory. By focusing on the U(1) Cartan subgroup, we find non-extremal 1, 2, 3 and 4 charge solutions. In the extremal limit, they may preserve up to 1/2, 1/4, 1/8 and 1/8 of the supersymmetry, respectively. In the limit of vanishing SO(8) coupling consta...
متن کاملSolutions of Minimal Four Dimensional de Sitter Supergravity
Pseudo-supersymmetric solutions of minimal N = 2, D = 4 de Sitter supergravity are classified using spinorial geometry techniques. We find two classes of solutions, the first is the cosmological Majumdar-Papapetrou solution of Kastor and Traschen, and the second corresponds to gravitational waves propagating in the Nariai cosmology.
متن کاملAnti-de Sitter/CFT Correspondence in Three-Dimensional Supergravity
Anti-de Sitter supergravity models are considered in three dimensions. Precise asymptotic conditions involving a chiral projection are given on the Rarita-Schwinger fields. Together with the known boundary conditions on the bosonic fields, these ensure that the asymptotic symmetry algebra is the superconformal algebra. The classical central charge is computed and found to be equal to the one of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2009
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2008.08.024