Quantum Physics Lecture Notes
... classical quantities such as the energy are replaced by operators. A quantum system may not always have a de nite energy, but the energy operator can always be de ned. We will see later on under what conditions we reproduce classical formulas like (16). The above is not a ...
... classical quantities such as the energy are replaced by operators. A quantum system may not always have a de nite energy, but the energy operator can always be de ned. We will see later on under what conditions we reproduce classical formulas like (16). The above is not a ...
Chapter 2 Theory of angular momentum
... • In classical mechanics, a rigid object admits two kinds of angular momentum: ~ = ~r × ~p), associated with the motion of the center of mass; – orbital (L ~ = Iω), associated with the motion about the center of mass. – spin (|S| F.i., the Earth has an orbital angular momentum attributable to its an ...
... • In classical mechanics, a rigid object admits two kinds of angular momentum: ~ = ~r × ~p), associated with the motion of the center of mass; – orbital (L ~ = Iω), associated with the motion about the center of mass. – spin (|S| F.i., the Earth has an orbital angular momentum attributable to its an ...
