Question

Consider a 3D box of equal dimensions a, electron mass m, electron's state (nx,xy,nz) = (2,1,1)...

Answer 1

A weak electron field is applied in the z direction of strength \[\epsilon \] is applyed on the system.

Answer 2

the perturbation is then \[W =e \epsilon z\] Compute the correct energy of the first order.

Answer 3

Heres what I did..