In case you hadn't figured it out already, it's a scam. They claim to reduce hydrogen to an energy state below the ground state using some kind of quantum voodoo.

The theory is all classical ie electric and magnetic fields and while there are quantum states in the sense of electron orbitals including previously unrecognised ones below the traditional ground state, there is no quantum math ie wavefunctions. No entanglement, no dead and live cats etc. Electron orbit is modeled as an infinitessemally thin fluid shell with charge elements spinning around the nucleus along all great circle orbits. However, while spinning, the orbital does not change - it's like a standing wave, and thus it does not radiate.