This quantity can be summed quantum-mechanically using Clebsch-Gordan coefficients.
A basis formed from the eigenstates of this operator is the subject of the Wigner-Eckhart theorem. The eigenvalues of this operator along a selected axis is equal to ? ("h-bar") times the magnetic quantum number. The commutator of two orthonormal operators describing this quantity is equal to minus i times ? ("h-bar") times the third. This quantity can be summed quantum-mechanically using Clebsch-Gordan coefficients. Pulsars and other rapidly rotating bodies demonstrate the conservation of this rotational quantity, the time derivative of torque. For 10 points, name this quantity equal to the product of moment of inertia and angular velocity.
A basis formed from the eigenstates of this operator is the subject of the Wigner-Eckhart theorem.
{angular momentum}