What about loop quantum GRAVITY?
The Big Bang Theory Season 7, Episode 20
...for this university's
six-loop quantum GRAVITY calculations.
The Big Bang Theory Season 6, Episode 9
The idea that you might be able
to incorporate GRAVITY...
The Big Bang Theory Season 2, Episode 6
...who believes loop quantum GRAVITY
better unites quantum mechanics...
The Big Bang Theory Season 2, Episode 2
...she's unjustifiably arrogant
about loop quantum GRAVITY...
The Big Bang Theory Season 2, Episode 2