  The density-of-states method (Phys.Rev.Lett. 109 (2012) 111601) features an
exponential error suppression and is not restricted to theories with positive
probabilistic weight. It is applied to the SU(2) gauge theory at finite
densities of heavy quarks. The key ingredient here is the Polyakov line
probability distribution, which is obtained of over 80 orders of magnitude. We
briefly address whether the exponential error suppression could be sufficient
to simulate theories with a strong sign problem.
