Homework Help: Need help with a quantum chemistry problem

1. Apr 9, 2009

chemstudent09

I'm really struggling on even getting started on this problem. I have read the chapter several times now and I have tried to understand the explanations in the chapter. But I can't even get this problem started. All I ask is if anyone knows how to do this, can you just get me started or point me in the right direction so I can then take it from there?

Thanks for any help.

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Prove the theorem <K|H|L> = (N!)1/2 <KHP|H|L>

where |KHP> is the Hartree product corresponding to the determinant |K>, i.e.

|K> = |Xm(X1)Xn(X2)...>

and

|KHP> = Xm(X1)Xn(X2)...

Prove this theorem
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This problem is from "Modern Quantum Chemistry" by Szabo & Ostlund for anyone who is wondering.

2. Apr 9, 2009

chemstudent09

I think I posted this question in the wrong part of these forums. I'm sorry about this.

3. Apr 10, 2009

alxm

Well, start by writing both sides out as integrals, which can be separated into sums of single-particle wave function-integrals, and see what cancels out.