The formation of ultra dense hydrogen from hydrogen Rydberg matter by way of the Shell Hydrogenation Catalyst 105, releases an amount of thermal energy similar to the Tadahiko Mizuno experiments.
As to nuclear fusion, Holmlid in prior experiments with laser triggered Coulomb explosion within the D(0) coated target, found traces of Helium 3 & Helium 4. The density of the Deuterium was such that some pressure induced (Pycnofusion) occurred, even without the presence of a converging shock typical of Inertial Fusion fuel pellets.
Both of interest. Got references where one can read further??