As always, any press release about "quantum" is fake.
What is "H-4"? How could this be used in solar panels? Did they use quantum computers for anything other than to spice up the press release?
There are no answers.
What is "H-4"? How could this be used in solar panels? Did they use quantum computers for anything other than to spice up the press release?
There are no answers.
The press release says it is a molecule of 4 hydrogen atoms. Neither the press release nor Wikipedia have any further thoughts as to how this is possible.