According to an article in Science, quantum = $$$.
[…] Sure, it’s the most powerful and accurate scientific theory ever devised. Yes, its bizarre predictions about the behavior of atoms and all other particles have been confirmed many times over with multi-decimal-place exactitude. True, technologies derived from quantum mechanics may account for 30% of the gross national product of the United States. So what’s not to like? [emphasis mine]
Why would this be? Well, electronics are an essential part of the US economy, and transistors are fundamentally quantum mechanical. This figure doesn’t include any quantum computing private companies.
Tunneling is fun. -Alan