Quantum origin of pre-big bang collapse from Induced Matter theory of
  gravity
  We revisit a collapsing pre-big-bang model of the universe to study with
detail the non-perturbative quantum dynamics of the dispersal scalar field
whose dynamics becomes from the dynamical foliation of test massless scalar
field $\phi$ on a 5D Riemann-flat metric, such that the extra space-like
coordinate is noncompact. The important result here obtained is that the
evolution of the system, which is described thorough the equation of state has
the unique origin in the quantum contributions of the effective 4D scalar
field.
