In quantum physics, the squeeze operator for a single mode of the electromagnetic field is
with and .
The squeeze operator is ubiquitous in quantum optics and can operate on any state. For example, when acting upon the vacuum, the squeezing operator produces the squeezed vacuum state.
nor does it commute with the ladder operators, so one must pay close attention to how the operators are used.
Application of both operators above on the vacuum produces squeezed states:
Famous quotes containing the word squeeze:
“We will get everything out of her that you can squeeze out of a lemon and a bit more.... I will squeeze her until you can hear the pips squeak.”
—Eric, Sir Geddes (18751937)