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comment Perturbation Theory Problem
can you explain how I should have written this for it to be acceptable, please?
Apr
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asked Perturbation Theory Problem
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accepted How do we know that the Virial Expansion exists?
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asked How do we know that the Virial Expansion exists?
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comment Showing that an operator is Hermitian
The derivative operator is anti-hermitian, so you're ok.
Dec
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comment Lecture Notes to Learn Quantum Field Theory
These should be very good. damtp.cam.ac.uk/user/dt281/qft.html
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comment Deriving the Angular Momentum Commutator Relations by using $\epsilon_{ijk}$ Identities
how exactly would i argue the cyclic permuation?
May
28
comment Deriving the Angular Momentum Commutator Relations by using $\epsilon_{ijk}$ Identities
I tried this out and I think the identity you give is wrong. If we apply [A,BC] = B[A,C] + [A,B]C to [AB,CD], we get the RHS of your first centred equation.