Extra force from an extra dimension. Comparison between brane theory, STM and other approaches

  title={Extra force from an extra dimension. Comparison between brane theory, STM and other approaches},
  author={Jaime Ponce de Leon},
  journal={General Relativity and Gravitation},
  • J. P. Leon
  • Published 15 October 2003
  • Physics
  • General Relativity and Gravitation
We investigate the question of how an observer in 4D perceives the five-dimensional geodesic motion. We consider the interpretation of null and non-null bulk geodesics in the context of brane theory, space-time-matter theory (STM) and other non-compact approaches. We develop a “frame-invariant” formalism that allows the computation of the rest mass and its variation as observed in 4D. We find the appropriate expression for the four-acceleration and thus obtain the extra force observed in 4D… 

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