Friday, 18 September 2020

quantum mechanics - What are phase conventions in angular momentum and rotation calculations?


I work with complicated angular momentum calculations related to atomic physics; nevertheless, I never need to use anything related to a phase convention (apparently because it's taken care of in a consistent way everywhere with me not noticing it), but I keep reading this term within subjects related to Clebsch-Gordan coefficients, Wigner D-matrices, 3j and 6j symbols, and Racah W-Coefficients, and more.


Can someone please explain what a phase convention is and how to use/utilize it?


Or guide me to some good book that would explain that?




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