Phys. Rev. D 65, 064013 (2002) [8 pages]Time travel paradoxReceived 18 November 2001; published 14 February 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.65.064013
DOI:
10.1103/PhysRevD.65.064013
PACS:
04.20.Gz
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