Physical cosmic strings do not generate closed timelike curves
Physical Review LettersPublished 20 January 1992Open access
S. Deser, R. Jackiw, Gerard ’t Hooft
Citations146
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
TL;DR
The causal properties of geometries generated by parallel, moving cosmic strings are reexamine, particularly the statement that closed timelike curves are forbidden there.
Abstract
We reexamine the causal properties of geometries generated by parallel, moving cosmic strings, particularly our statement that closed timelike curves are forbidden there. Contrary to a recent claim, such acausal behavior cannot be realized by physical, timelike, sources.
Keywords
Physics and Astronomy
Annals of PhysicsThree-dimensional Einstein gravity: Dynamics of flat space
1,287 Citations1984S. Deser, R. Jackiw +1 more
Physical Review LettersClosed timelike curves produced by pairs of moving cosmic strings: Exact solutions
351 Citations1991J. Richard Gott
The solutions for parallel cosmic strings moving in opposite directions, each with γs>(sin4πμ)−1 in the laboratory frame show closed timelike curves (CTC’s) that circle the two strings as they pass, allowing observers to visit their own past.
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsGlobal structure of Gott's two-string spacetime
38 Citations1992Curt Cutler
It is proved that the closed timelike curves are confined to a certain region of the spacetime, and that the Spacetime contains complete spacelike, edgeless, achronal hypersurfaces, from which the causality-violating regions may be said to evolve.