Speaker
Prof.
Nihat Deger
(Bogazici University)
Description
We determine the most general form of off-shell N=(1,1) supergravity field configurations in three dimensions by requiring that at least one off-shell Killing spinor exists. We then impose the field equations of the topologically massive off-shell supergravity and find a class of solutions whose properties crucially depend on the norm of the auxiliary vector field. These are spacelike-squashed and timelike-stretched AdS_3 for the spacelike and timelike norms, respectively. At the transition point where the norm vanishes, the solution is null warped AdS_3. This occurs when the coefficient of the Lorentz-Chern-Simons term is related to the AdS radius by μℓ=2. We find that the spacelike-squashed AdS_3 can be modded out by a suitable discrete subgroup of the isometry group, yielding an extremal black hole solution which avoid closed timelike curves.
Authors
Prof.
Ali Kaya
(Bogazici University)
Prof.
Ergin Sezgin
(Texas A&M)
Prof.
Henning Samtleben
(ENS Lyon)
Prof.
Nihat Deger
(Bogazici University)
