As someone with more of a math than a physics background I really enjoyed this, but I guess I'm surprised by how, for lack of a better word, basic, it seemed? Maybe that serves as a compliment to the author, in the past I have been snowed by all these vocab words when it turns out it's mostly just linear algebra. A lot of what I enjoyed here were the sidebars explaining that concept X was really just rebranded Y, detail Z is not really important for intuition, etc...
A random question along those lines: why represent states as 2d complex vectors instead of quarterions? Aren't they the same thing? As soon as I read that I spent the rest of the article wondering if everything it would make even more sense cast that way.
A random question along those lines: why represent states as 2d complex vectors instead of quarterions? Aren't they the same thing? As soon as I read that I spent the rest of the article wondering if everything it would make even more sense cast that way.