How would you determine the ground state
of a QUANTUM system with no exact solution?
The Big Bang Theory Season 8, Episode 2
...and QUANTUM mechanics teaches us...
The Big Bang Theory Season 2, Episode 19
What about loop QUANTUM gravity?
The Big Bang Theory Season 7, Episode 20
From QUANTUM particles to supernovas.
The Big Bang Theory Season 3, Episode 10
"regarding your QUANTUM guidance system,
provisional patent 62/295118."
The Big Bang Theory Season 9, Episode 24