In a youtube video, sir Michael Atiyah mentioned that even after working during the most of his life on spinors, he doesn't know what a spinor is. Now surely that was part of his humorous introduction to the talk there, but still, we work on spinors but how much are we capable of setting its definition in simple terms? My question is in the simplest form that I can think of: What is a spinor?
Sunday, March 13, 2016
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