  We examine the Kaluza-Klein theory for warped flux compactifications of type
$II\ b $ string theory on a Minkowski spacetime $ M_4$ times a conic Calabi-Yau
orientifold $X_6$. The region glued along the internal space directions to the
bulk of $X_6$ is modeled by the warped undeformed conifold $\calc _6$. The
resulting classical vacum solution of Klebanov-Tseytlin solution, valid at
large radial distances from the conic singularity, describes a spacetime
asymptotic to $ AdS_5 $ times the conifold compact base $ T^{1,1}$. The metric
tensor, axio-dilaton and antisymmetric fields part of the 10-d supergravity
multiplet bosonic sector decompose into towers of scalar and tensor fields of
fixed mass associated to harmonic modes of $T^{1,1}$ and $M_4$. The warped
throat deformations by compactification effects are described by means of
AdS/CFT duality. The applications are developed within the hard wall
approximation for a truncated $ AdS_5 $ spacetime ending on flat boundaries.
Numerical results are presented for the mass spectra and interactions of a
selected set of singlet and charged modes and for the interactions of graviton
modes with embedded branes. We examine the possibility that an interacting gas
of warped massive modes produced after brane-antibrane inflation might reheat
the universe and leave cold dark matter relics.
