Find the matrix elements and in the (orthonormal) basis of stationary states for the harmonic oscillator (Equation
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Find the matrix elements and in the (orthonormal) basis of stationary states for the harmonic oscillator (Equation 2.68). You already calculated the “diagonal” elements (n = n') in Problem 2.12; use the same technique for the general case. Construct the corresponding (infinite) matrices, X and P. Show that
is diagonal, in this basis. Are its diagonal elements what you would expect? Partial
(Equation 2.68)
Problem 2.12
Find (x), (p), (x2), (p2) and (T), for the nth stationary state of the harmonic oscillator, using the method of Example 2.5. Check that the uncertainty principle is satisfied.
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Related Book For
Introduction To Quantum Mechanics
ISBN: 9781107189638
3rd Edition
Authors: David J. Griffiths, Darrell F. Schroeter
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