  Sudden deposition of energy at the early stage of high energy heavy ion
collisions makes virtual gluon fields real.
  The same is true for virtual vacuum fields $under$ the topological barrier,
excited to real states $at$ or $above$ the barrier, gluomagnetic clusters of
particular structure related to the $sphalerons$ of the electroweak theory.
Semiclassically, these states play the role of the {\em ``turning points''}.
After being produced they explode into a spherical shell of coherent field
which then turn into several outgoing gluons. Furthermore, this explosions
promptly produce quark pairs, as seen from explicit solution of the Dirac
equation.
  The masses of such clusters depend on their size, and are expected to peak at
$M\sim 3 GeV$. After we briefly review those consepts in a non-technical
manner, we discuss what observable consequences the production of such clusters
would make in the context of heavy ion collisions, especially at the RHIC
energies. We discuss entropy and especially quark production, event-by-event
fluctuations in collective effects like radial and elliptic flows and $J/\psi$
suppression. Coherent fields and their geometry increase the jet quenching, and
we also point out the existene of ``explosive edge'' which jump-start
collective effects and may affect unusual phenomena seen at RHIC at large
$p_t$.
