Closed timelike curves in asymmetrically warped brane universes

Mar, 2006
13 pages
Published in:
  • Phys.Rev.D 80 (2009) 044008
e-Print:

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200620092012201520181203
Abstract: (arXiv)
We discuss causality properties of asymmetrically warped space-times and argue that such scenarios may allow for timelike curves which can be closed via paths in the extra-dimensional bulk. We find a metric where the null, weak and dominant energy conditions are violated in the bulk, but satisfied on the brane. Such scenarios are interesting, since in principle gravitons or gauge-singlet (``sterile'') fermions propagating in the extra dimension may be manipulated in a way to test the chronology protection conjecture experimentally.
  • 04.50.-h
  • 04.20.Gz
  • membrane model
  • space-time: warped
  • causality: violation
  • tensor: energy-momentum
  • energy: density