Use the formulas given (which have been solved in previous questions) prove that
where w_12 is a complex constant.
From here, induce that
where eps_abc is the fully anti-symmetric symbol
The equations given to use are:
The Attempt at a Solution
First, I expanded the commutator given (cannot give here as I have reached max file upload for a single post), but after that I keep on looking at it and I'm not exactly sure how to proceed. I have proved the first and last of the "relevant equations" and have the expanded forms of that and I think I may have to use that but I am not sure.
Any help would be appreciated.
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