An unexpected topological censor
arXiv:0904.2928
Abstract
Morris-Thorne wormholes with a cosmological constant Λhave been studied extensively, even allowing Λto be replaced by a space variable scalar. These wormholes cannot exist, however, if Λis both space and time dependent. Such a Λwill therefore act as a topological censor. While not likely to have a bearing on the present, possible cosmological consequences of inflation cannot be discounted.
5 pages, 1 figure
References in corpus (5)
- The Cosmological Constant and Dark Energy
- Morris-Thorne wormholes with a cosmological constant
- Variable Cosmological Constant model: the reconstruction equations and constraints from current observational data
- Relativistic anisotropic charged fluid spheres with varying cosmological constant
- Scenarios of cosmic string with variable cosmological constant