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Blamo_slamo
Nov11-09, 10:52 PM
1. The problem statement, all variables and given/known data
If we were to ignore the interelectronic repulsion in helium, what would be it's ground state energy and wave function?


2. Relevant equations
I have created my ground state wave function \psi for 1s:

\psi = (1/\sqrt{}\pi)(z/a)3/2(e-zr/a)

The operator is the laplacian, in spherical polar coordinates.

3. The attempt at a solution

So the energy of the two particles is the hamiltonian operating on \psi,
and I should get an eigen function out which would be the energy for one of the two particles.
Using the laplacian operator I got:

E = [(-\hbar 2/2m)(1/\sqrt{}\pi)(z/a)3/2](z2/a2 e-zr/a - 2z/ar e-zr/a) + V(r)\psi

For the energy of the one particle. My problem is,
that this isn't an eigen function of the laplacian, and I've managed to hit a brick wall.
I'm completely stumped on what I could do, any help would be greatly appreciated!