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Causality properties of topologically nontrivial space-time models | | M. Yu. Konstantinov
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17 Feb 1998 | | Journal: | Grav.Cosmol. 3 (1997) 299-304 | | Subject: | gr-qc | | Abstract: | 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. | | Source: | arXiv, gr-qc/9802040 | | Other source: | [GID 260915] gr-qc/9406004 | | Services: | Forum | Review | PDF | Favorites | |
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