We review the tachyon model derived from the dynamics of a 3-brane moving in
the AdS5 bulk. The bulk geometry is based on the Randall-Sundrum II model
extended to include the radion. The effective tachyon Lagrangian is modified
due to the back-reaction of the brane on the bulk geometry.Comment: 21 pages, 5 figures, typos corrected, a refference added, based on
  the talk of NB presented at BW2013 - Beyond the standard models, April 2013,
  Vrnjacka Banja, Serbia, to appear in CEJ

Bilic, Neven