  Across the finite temperature transition to the quark-gluon plasma, the QCD
topological susceptibility decreases sharply. Thus in the high temperature
phase the remaining topological objects (possibly calorons) form a weakly
interacting dilute gas. The overlap Dirac operator, through its exact zero
modes, allows one to measure the net topological charge. We show that
separately the number of positively and negatively charged topological objects
can also be extracted from the low end of the overlap Dirac spectrum. We find
that slightly above the phase transition their number distributions are already
consistent with an ideal gas of non-interacting topological objects.
