Senior THEORETICAL particle physicist
at CaITech, focusing on M Theory.
The Big Bang Theory Season 3, Episode 14
She's a neurobiologist, and
I'm a THEORETICAL physicist.
The Big Bang Theory Season 7, Episode 21
...to succeed in THEORETICAL physics.
The Big Bang Theory Season 2, Episode 6
Maybe we can find
another THEORETICAL physicist to help us.
The Big Bang Theory Season 10, Episode 15
Is it maybe because, like Sheldon's work,
your sex life is also THEORETICAL?
The Big Bang Theory Season 6, Episode 9