GATE PH 2019 PH Q6: Quantum Mechanics

An electric field

is applied to a Hydrogen atom in

excited state. Ignoring spin, the

state is fourfold degenerate, which in the

basis are given by

and

. If

is the interaction Hamiltonian corresponding to the applied electric field, which of the following matrix elements is nonzero?

Your answerChoose one option.

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