The Bohr model is wrong. It’s just wrong in a useful way. And Rhydberg was working on an alternative model to explain exactly this when quantum mechanics came out; he abandoned it. I’m personally inclined to believe he was correct, but that’s not what I want to talk about.
The Stern-Gerlach Experiment was merely in agreement with particle spin; at best its existence, given that it predated particle spin theory, proves that particle spin adds up to normality.
He’s proficient in classical mechanics, and wants to grok quantum mechanics. In order to do so, he needs to follow it; not just learn the current state, but see why the current state is what it is, what experiments were performed, what ideas were discarded. I’m not terribly helpful in this regard on account of probably being a crank; my explanations tend to come with a large number of “buts” and alternative explanations that are more confusing than helpful.
In that case maybe chapters 1,2,4 and 6 of Volume 1 of Albert Messiah’s Quantum Mechanics? That gives you a pretty nice introduction and connects well with classical mechanics, without relying too much on the math.
I’m sure selections from other textbooks would work as well. For future reference, quantum mechanics is a subset of modern physics, so if you only want quantum mechanics, you should indicate that somehow.
The Bohr model is wrong. It’s just wrong in a useful way. And Rhydberg was working on an alternative model to explain exactly this when quantum mechanics came out; he abandoned it. I’m personally inclined to believe he was correct, but that’s not what I want to talk about.
The Stern-Gerlach Experiment was merely in agreement with particle spin; at best its existence, given that it predated particle spin theory, proves that particle spin adds up to normality.
He’s proficient in classical mechanics, and wants to grok quantum mechanics. In order to do so, he needs to follow it; not just learn the current state, but see why the current state is what it is, what experiments were performed, what ideas were discarded. I’m not terribly helpful in this regard on account of probably being a crank; my explanations tend to come with a large number of “buts” and alternative explanations that are more confusing than helpful.
In that case maybe chapters 1,2,4 and 6 of Volume 1 of Albert Messiah’s Quantum Mechanics? That gives you a pretty nice introduction and connects well with classical mechanics, without relying too much on the math.
I’m sure selections from other textbooks would work as well. For future reference, quantum mechanics is a subset of modern physics, so if you only want quantum mechanics, you should indicate that somehow.