- #1
copernicus1
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I've been trying to wrap my head around spinors, and I think I'm beginning to understand the mathematical formalism, but one thing in particular continues to confuse me. Whenever I read anything mathematically rigorous on spinors, the authors refer to spinors being associated with isotropic (zero length) vectors.
Does anyone know how this squares with the use of spinors in QM and QFT? Spin vectors clearly have length, so why do we use this mathematical formalism developed for isotropic vectors?
Does anyone know how this squares with the use of spinors in QM and QFT? Spin vectors clearly have length, so why do we use this mathematical formalism developed for isotropic vectors?