Work equals the change in this quantity.
In the exponential of wave functions for stationary states, this quantity is multiplied by negative i times t over h-bar. This quantity is equal to the time derivative of the action. The commutator of this quantity with time is negative i times h-bar, which means they have an uncertainty relation similar to Heisenberg's. Two forms of this quantity are added together to give the (*) Hamiltonian. Quantum mechanical states are degenerate if they have the same value for this quantity. Work equals the change in this quantity. For 10 points, name this quantity that can come in potential and kinetic varieties.
In the exponential of wave functions for stationary states, this quantity is multiplied by negative i times t over h-bar.
energy [prompt on “Lagrangian” due to ambiguities with time derivative of action]