
...due to QUANTUM vacuum fluctuation?"
The Big Bang Theory Season 1, Episode 13

Not till you tell me about
your latest paper on QUANTUM loop theory.
The Big Bang Theory Season 10, Episode 24

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

What about loop QUANTUM gravity?
The Big Bang Theory Season 7, Episode 20

How would you determine the ground state
of a QUANTUM system with no exact solution?
The Big Bang Theory Season 8, Episode 2