
and its QUANTUM efficiency
is off the charts.
The Big Bang Theory Season 12, Episode 7

Specifically, QUANTUM field theory
in D-dimensional de Sitter space.
The Big Bang Theory Season 4, Episode 23

...can be achieved by creating a macroscopic
example of QUANTUM superposition...
The Big Bang Theory Season 6, Episode 19

...the Copenhagen interpretation of QUANTUM
physics, he proposed an experiment.
The Big Bang Theory Season 1, Episode 17