Problem 3. 1D harmonic oscillator (Griffiths book Problem 2.42) In class, we showed that the eigen energies of 1D harmonic oscillator are: En = (n + 1/2) h-bar omega, n = 0, 1, 2, ... Start from there and find the allowed eigen energies of the half harmonic oscillator, V(x) = { 1/2 m omega^2, x > 0; infinity, x <= 0. This requires some careful thought, but very little actual computation.