The all four matrix elements H i j ' of the perturbation H ' ^ = e E z between the ground state and the first excited states. Show that H i i ' = 0 for all five states

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Chapter 11.1, Problem 11.2P

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The all four matrix elements Hij' of the perturbation H'^=eEz between the ground state and the first excited states. Show that Hii'=0 for all five states

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