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The orientability of spacetime

Authors
Publisher
IOP Publishing Inc.
Publication Date
Keywords
  • Qb Astronomy
  • Qc Physics
Disciplines
  • Physics

Abstract

Contrary to established beliefs, spacetime may not be time-orientable. By considering an experimental test of time-orientability it is shown that a failure of time-orientability of a spacetime region would be indistinguishable from a particle-antiparticle annihilation event.

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