Simple generalizations of Anti-de Sitter space-time
arXiv:0911.3697 · doi:10.1088/0264-9381/27/13/135004
Abstract
We consider new cosmological solutions which generalize the cosmological patch of the Anti-de Sitter (AdS) space-time, allowing for fluids with equations of state such that . We use them to derive the associated full manifolds. We find that these solutions can all be embedded in flat five-dimensional space-time with signature, revealing deformed hyperboloids. The topology and causal-structure of these spaces is therefore unchanged, and closed time-like curves are identified, before a covering space is considered. However the structure of Killing vector fields is entirely different and so we may expect a different structure of Killing horizons in these solutions.
6 Pages, 5 Figures, Corrections and additions made for publication in Journal of Classical and Quantum Gravity