Yeah, well, it's just some
QUANTUM mechanics...
The Big Bang Theory Season 1, Episode 1
...of the Aharonov-Bohm
QUANTUM interference effect.
The Big Bang Theory Season 3, Episode 10
that the brain itself
is in two different QUANTUM states,
The Big Bang Theory Season 10, Episode 20
"How does a QUANTUM computer
factor large numbers?"
The Big Bang Theory Season 1, Episode 13
...of the QUANTUM vacuum has little
effect on the expansion of the universe.
The Big Bang Theory Season 4, Episode 7