- #1
JordanGo
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Homework Statement
If E1≠E2≠E3, what are the new energy levels according to the second-order perturbation theory?
Homework Equations
H' =
α(0 1 0)
(1 0 1)
(0 1 0)
ψ1=
(1)
(0)
(0)
ψ2=
(0)
(1)
(0)
ψ3=
(0)
(0)
(1)
Second order perturbation theory:
[itex] E^{o}_{n}^{2}=\sum(<\Psi_{n}^{o}|H'|\Psi_{o}^{0}>)^{2}/(E_{0}-E_{n})[/itex]
The Attempt at a Solution
I do not know how to obtain the energies of the unperturbed state, nor the functions ψ, can someone help me?