Physicists at the University of Osaka have unveiled a breakthrough theoretical framework that uncovers the hidden physical rule behind one of the most powerful compression methods in laser fusion science—the stacked-shock implosion.

While multi-shock ignition has recently proven its effectiveness in major laser facilities worldwide, this new study identifies the underlying law that governs such implosions, expressed in an elegant and compact analytic form.

A team led by Professor Masakatsu Murakami has developed a framework called Stacked Converging Shocks (SCS), which extends the classical Guderley solution—a 1942 cornerstone of implosion theory—into the modern high-energy-density regime.