# How Obtain A Wavefunction

1. Nov 1, 2010

### Waxterz

How you obtain the Wavefunction of a system?

$$\Psi$$ = A e$$^{kx + wt}$$

I get it that you can plug this in the Schrodinger equation, but what I don't get is how you obtain the parameters experimentally ???

2. Nov 1, 2010

### Staff: Mentor

The wavenumber and angular frequency are related to the momentum and energy respectively:

$$\Psi = Ae^{i(kx-\omega t)} = Ae^{i(px-Et)/\hbar}$$

The amplitude is related to the relative probability of finding the particle at a particular location. For a pure plane wave (same amplitude everywhere), the probability is uniform. That is, the particle is just as likely to be located one place as any other place.