B Quantum Physics and Atomic Physics

Vectronix
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What’s the difference?
I think Atomic physics gets into specific examples and experiments but I think I’m probably wrong. So, I have to ask, what is atomic physics and how is it different than quantum physics?
 
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Quantum Physics (probably) governs the interaction of all things but is most evident for small objects. Atoms are small objects ubiquitous to us.
 
Quantum mechanics was originally developed to understand the structure of atoms, hence historically was also called atomic physics. QM has now evolved beyond considering only atoms, so atomic physics should be seen as a subtopic in the field of quantum mechanics.

Not that atoms play a very important role experimentally in testing many aspects of quantum mechanics.
 
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Hi. I have got question as in title. How can idea of instantaneous dipole moment for atoms like, for example hydrogen be consistent with idea of orbitals? At my level of knowledge London dispersion forces are derived taking into account Bohr model of atom. But we know today that this model is not correct. If it would be correct I understand that at each time electron is at some point at radius at some angle and there is dipole moment at this time from nucleus to electron at orbit. But how...
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