2002
DOI: 10.1103/physrevd.65.064013
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Time travel paradox

Abstract: We define the time travel paradox in physical terms and prove its existence by constructing an explicit example. We argue further that in theories -such as general relativity -where the spacetime geometry is subject to nothing but differential equations and initial data no paradoxes arise.

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Cited by 36 publications
(52 citation statements)
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“…13 Other authors have argued that the paradoxes arising from closed timelike curves are real, but can be resolved by an appropriate extension of the space-time manifold 14 (see Subsection III.B).…”
Section: Causal Structure Of Space-time (N K) ¼ (3 2)mentioning
confidence: 99%
“…13 Other authors have argued that the paradoxes arising from closed timelike curves are real, but can be resolved by an appropriate extension of the space-time manifold 14 (see Subsection III.B).…”
Section: Causal Structure Of Space-time (N K) ¼ (3 2)mentioning
confidence: 99%
“…Refs. [44][45][46]. Surprisingly enough, the issue has some consequence for our present topic, as noticed by Deutsch, (47) and recently elaborated in a well-written paper by Grove.…”
Section: Time Travel?mentioning
confidence: 76%
“…But there is another kind of solution, which, following Krasnikov (2002), I will call 'lions'. Lions are loop objects, objects that exist just as a loop along a CTC, without beginning or end.…”
Section: Logic or Physics?mentioning
confidence: 99%