- #1
shedrick94
- 30
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I'm going through a derivation and it shows: (dirac notation)
<una|VA-AV|unb>=(anb-ana)<una|V|unb>
V and A are operators that are hermition and commute with each other and ana and anb are the eigenvalues of the operator A. I imagine it is trivial and possibly doesn't even matter but why does the sign flip when the operator acts on the eigenfunctions.
i.e why is it not <una|VA-AV|unb>=(ana-anb)<una|V|unb>
<una|VA-AV|unb>=(anb-ana)<una|V|unb>
V and A are operators that are hermition and commute with each other and ana and anb are the eigenvalues of the operator A. I imagine it is trivial and possibly doesn't even matter but why does the sign flip when the operator acts on the eigenfunctions.
i.e why is it not <una|VA-AV|unb>=(ana-anb)<una|V|unb>
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