I'm still amazed by the level of insight, inspiration and daring in going from Klein Gordon to Dirac.
"Hmmm. This naive way of introducing relativity into QM gives us an equation that doesn't appear to describe the electron. What if we made it four-dimension? Oh, and what if we interpret the negative energy solutions as particles, too? And what's this weird behavior of the thing under rotation? Let's call that spin".
lagerbaer t1_iuisayz wrote
Reply to comment by mumblerfish in When and how was special relativity integrated into QM/QFT? by YouSchee
I'm still amazed by the level of insight, inspiration and daring in going from Klein Gordon to Dirac.
"Hmmm. This naive way of introducing relativity into QM gives us an equation that doesn't appear to describe the electron. What if we made it four-dimension? Oh, and what if we interpret the negative energy solutions as particles, too? And what's this weird behavior of the thing under rotation? Let's call that spin".