Perturbative Treatment on Diatomic Hydrogen Molecule

**aeracer** · Nov10-09, 09:36 PM

Hello Everyone! I need help on this topic. Can anyone provide me some details on how to solve the problem? Thanks..

**alxm** · Nov11-09, 12:58 PM

Try this

**Bob S** · Nov11-09, 04:09 PM

As I recall, the hydrogen molecule (and maybe also the hydrogen molecular ion) problems are solved in the quantum mechanics book by Pauling and Wilson.
Bob S

[added] Pauling and Wilson, Introduction to Quantum Mechanics, Mcgraw Hill (1935). See the following pages
Hydrogen molecule, page 340
Excited states of hydrogen molecule, page 353
Hydrogen molecule ion, page 327

**alxm** · Nov11-09, 06:21 PM

As an aside, the best method (as in - most accurate for the computational complexity) is the now seldom-seen Hylleraas variational approach (applied to helium in 1929), which works for two electrons but not that well for many more. The method was used to calculate hydrogen in 1933, with a result that was far better than perturbatory calculations could do at that time.

**aeracer** · Nov13-09, 08:07 AM

Originally Posted by alxm

Try this

Hey thanks for the link. I think the file has the information i need. Unfortunately i dont have an access to download the file. =) Just in case you have another link to that file perhaps you can post it. =)

**aeracer** · Nov13-09, 08:10 AM

Originally Posted by Bob S

As I recall, the hydrogen molecule (and maybe also the hydrogen molecular ion) problems are solved in the quantum mechanics book by Pauling and Wilson.
Bob S

[added] Pauling and Wilson, Introduction to Quantum Mechanics, Mcgraw Hill (1935). See the following pages
Hydrogen molecule, page 340
Excited states of hydrogen molecule, page 353
Hydrogen molecule ion, page 327

Thanks! I just borrowed that book and I will read it. I'll try to understand the book. I will post some questions just in case I cant understand some parts of it. =) Thanks again. Just in case you have any other info about the topic, please feel free to post it because it would really be a great help. =)