Question: Show that the interaction Hamiltonian (5.2.8) is Hermitian, even if n|p(vector)|n is complex. The fact that both n and nare summed over is important. He-phot

Show that the interaction Hamiltonian (5.2.8) is Hermitian, even if ⟨n′|p(vector)|n⟩ is complex. The fact that both n and n′are summed over is important. $He-phot m X h , {n'\p } 2 nn' k ka bt$

He-phot m X h , {n'\p } 2 nn' k ka bt .b = + ab k n',ki+k nk1 -b ',k -k nky (5.2.8)

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