Talk:Molecular Hamiltonian

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Definitions

Hmm...Merge with Electronic Hamiltonian? --HappyCamper 20:43, 23 September 2006 (UTC)[reply]

They describe the same things, and a merge with the Born-Oppenheimer_approximation and expandning the merged article to include parts about the vibronic and rotational Hamiltonian would make the articles much more usefull--Martin Hedegaard 22.19, 24 September 2006 (UTC)

I agree. Actually, these articles on Wikipedia are a mess right now, and really need some major cleanup. Maybe in a few days we can merge? --HappyCamper 18:29, 24 September 2006 (UTC)[reply]

I be happy to help to expand the resulting article and I have quite good references on the subject, but I am still a little shaky in the workings of wikipedia so a little help in this merge project would be appreciated. I my opinion the best would be to expand Electronic Hamiltonian to include the information given in Molecular Hamiltonian and the Born-Oppenheimer_approximation and expand the subject first Martin Hedegaard 14:56, 25 September 2006 (UTC)[reply]

Sure, there is some information at Wikipedia:Merging and moving pages which you might find useful. I agree with your approach too. Is everything on this page in Electronic Hamiltonian now? If so, we can blank this page and make it into a redirect. I also see you have a sandbox set up. I can merge that with the existing electronic Hamiltonian article once its done if you like. --HappyCamper 03:53, 26 September 2006 (UTC)[reply]

I dont think that the article on Electronic Hamiltonian is covering the concept of Molecular Hamiltonian very well right now, but I am working on it in my sandbox right now. When it is finished it would probably replace both Molecular Hamiltonian and Born-Oppenheimer_approximation, and add information about the rotational and vibrational Hamiltonian it just need a bit more work and a new intro part -- Martin Hedegaard 09:01, 26 September 2006 (UTC)[reply]

Made a big rework on the article in my sandbox that should cover most of the Molecular Hamiltonian, and Electronic Hamiltonian and Molecular Hamiltonian should probably be merged under the name of Molecular Hamiltonian. The article Born-Oppenheimer_approximation should probably go there too, but at proper explanation of the concept involves description of the splitting of the wavefunction, and the crude born oppenheimer approximation Martin Hedegaard 11:34, 26 September 2006 (UTC)[reply]

Yes, I noticed that :-) In that case, we can simply move the sandbox contents over to the main article. Don't cut and paste it though, because it's important that we keep the edit histories which accompany the articles. --HappyCamper 16:23, 26 September 2006 (UTC)[reply]

I would like a breif review of the sandbox before moving it, I am not a native english speaker, and its a long time since I wrote anything english. If its okay just go ahead and move the content. The Electronic Hamiltonian should just be a redirect to this page, the new article covers exactly the same things as the old article-- Martin Hedegaard 16:45, 26 September 2006 (UTC)[reply]

Okay, well here is the result after some swapping around. If it turns out this is problematic, we can fix it. --HappyCamper 20:54, 26 September 2006 (UTC)[reply]

Born-Oppenheimer

I would like to separate off the BO lemma again. I have seen the criticisms, especially by the anonymous from the University of Stockholm (130.237.179.166). I understand what (s)he is saying and I can write an article that will not offend him/her too much. Anybody has any objections? --P.wormer 15:31, 8 December 2006 (UTC)[reply]

Nope, feel free to edit as you see fit. --HappyCamper 04:33, 10 December 2006 (UTC)[reply]

Unusual notation

The notation used in this article:

{\frac {\partial }{\partial R_{i}}}

is unusual for differentiation with respect to a vector. More common is either $\nabla _{i}$ or introduction of components

{\frac {\partial }{\partial R_{i\alpha }}}

with $i=x,y,z$ . Is this notation on purpose, or just by mistake?--P.wormer 10:56, 26 December 2006 (UTC)[reply]