New light on time machines: Against the chronology protection conjecture
- 15 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 50 (10) , R6037-R6040
- https://doi.org/10.1103/physrevd.50.r6037
Abstract
I construct a spacetime with closed timelike curves and without closed causal geodesics. There is a noncompactly generated Cauchy horizon separating the region with closed timelike curves from that without closed causal curves. This spacetime might be stable against the vacuum fluctuation of matter fields. Whether such a spacetime is stable against the vacuum fluctuation of a gravitational field is an open question.Keywords
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