
"regarding your QUANTUM guidance system,
provisional patent 62/295118."
The Big Bang Theory Season 9, Episode 24

...who believes loop QUANTUM gravity
better unites QUANTUM mechanics...
The Big Bang Theory Season 2, Episode 2

You're doing work
in QUANTUM loop corrections.
The Big Bang Theory Season 1, Episode 12

My QUANTUM gravity's
positively loopy.
The Big Bang Theory Season 7, Episode 20

Quantum physics
makes me so happy.
The Big Bang Theory Season 5, Episode 20