Introduction to Quantum Mechanics · Problem 7.16

Time-Independent Perturbation Theory — David J. Griffiths

Physics — Quantum Mechanics · hydrogen_expectation_values

Problem

In Problem 4.52 you calculated the expectation value of

r^s

in the state

\psi_{321}

. Check your answer for the special cases

s = 0

(trivial),

s = -1

(Equation 7.56),

s = -2

(Equation 7.57), and

s = -3

(Equation 7.66). Comment on the case

s = -7