FTP name this physical quantity, denoted "L," used to describe the rotation of an object.
In quantum mechanics, operators for this quantity are defined in terms of a specific commutation relation, and furthermore Plank's constant has the units of it. As in classical mechanics, its orbital value is given by "r cross p," and arbitrary sums of these are often denoted by the letter "J." Its conservation arises from rotational symmetry and is ensured in systems with zero torque. FTP name this physical quantity, denoted "L," used to describe the rotation of an object.
In quantum mechanics, operators for this quantity are defined in terms of a specific commutation relation, and furthermore Plank's constant has the units of it.
{Angular Momentum}