Quantum Mechanical Rotations
With every physical rotation R, we postulate a quantum mechanical rotation operator D(R) which rotates quantum mechanical states.
In terms of the generators of rotation,
Please see "rotations in quantum mechanics" for details.
Read more about this topic: Rotation Operator (quantum Mechanics)
Famous quotes containing the words quantum and/or mechanical:
“The receipt to make a speaker, and an applauded one too, is short and easy.—Take of common sense quantum sufficit, add a little application to the rules and orders of the House, throw obvious thoughts in a new light, and make up the whole with a large quantity of purity, correctness, and elegancy of style.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)
“No sociologist ... should think himself too good, even in his old age, to make tens of thousands of quite trivial computations in his head and perhaps for months at a time. One cannot with impunity try to transfer this task entirely to mechanical assistants if one wishes to figure something, even though the final result is often small indeed.”
—Max Weber (1864–1920)