Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1998-02-17
Grav.Cosmol.3:299-304,1997
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
7 pages, LaTeX; Talk presented at the International School-Seminar "Problems of Theoretical Cosmology", Ulyanovsk, September 1
Scientific paper
Some problems of the space-time causal structure are discussed using models with traversable wormholes. For this purpose the conditions of traversable wormhole matching with the exterior space-time are considered in detail and a mixed boundary problem for the Einstein equations is formulated and analyzed. The influence of these matching conditions on the space-time properties and causal structure is analyzed. These conditions have a non-dynamical nature and cannot be determined by any physical process. So, the causality violation cannot be a result of dynamical evolution of some initial hypersurface. It is also shown that the same conditions which determine the wormhole joining with the outer space provide the self-consistency of solutions and the absence of paradoxes in the case of causality violation.
No associations
LandOfFree
Causality properties of topologically nontrivial space-time models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Causality properties of topologically nontrivial space-time models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Causality properties of topologically nontrivial space-time models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-602850