[oneshtein]

Some researchers[0] are using a lattice filled with Deuterium to increase density of Deuterium and boost rate of nuclear reactions by using Inertial Electrostatic Confinement fusion and Lattice Confinement Fusion: https://youtu.be/UtfUeip4vyA?t=400

[0]: https://www.astralneutronics.com/