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MP2 vs. HF Method Explanation for Beginners
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[QUOTE="physicisttobe, post: 6817926, member: 728890"] First of all, thank you very much for your explanation! I'm glad you're a chemist, because the questions I'm actually asking have something to do with computational chemistry. (By the way, I am studying chemistry). Anyway, I want to expand my knowledge in this field. So I am really glad that I can get chemical explanations here in this forum. Back to the actual topic: I still haven't understood this phrase "[I]we assume that each electron sees an average potential from all the other electrons (this is also called the mean field approximation). However, this is not very accurate, because electron motions can become correlated with each other[/I]." What exactly do you mean by avergage potential? How can I imagine this? And aren´t the electrons fixed in the mean field A.? I thought that we consider only one electron and that the rest of the electrons are not mobile. Therefore, they cannot correlate with each other? [/QUOTE]
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MP2 vs. HF Method Explanation for Beginners
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