Introduction To Quantum Mechanics
3rd Edition
ISBN: 9781107189638
Author: Griffiths, David J., Schroeter, Darrell F.
Publisher: Cambridge University Press
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Question
Chapter 3, Problem 3.48P
(a)
To determine
Whether momentum operator is hermitian or not.
(b)
To determine
The necessary condition for domain of
(c)
To determine
Whether there is a self-adjoint momentum operator on the semi infinite interval.
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Consider the matrix representation of Lx, Ly and L₂ for the case l = 1 (see Matrix Representation of
Operators class notes pp. 11-12).
(a) Construct the matrix representation of L² for l = 1.
(b) What are the eigenvalues and corresponding eigenvectors of L²?
(c) Are the eigenvectors of L² the same as those of L₂? Explain.
(d) Compute L² |x; +1), where |x;+1) is the eigenvector of La corresponding to eigenvalue +ħ.
Consider the following operator
imp
Â=
and the following functions that are both eigenfunctions of this operator.
mm (0) = e²
‚ (ø) =
(a) Show that a linear combination of these functions
d²
dø²
is also an eigenfunction of the operator.
(b) What is the eigenvalue?
-m
imp
c₁e¹m + c₂e²
-imp
-imp
= e
Suppose I have an operator A, and I discover that Â(2²) = 5 sinx and Â(sin x) = 5x².
(a) Find Â(2² - sin x)
(b) Name one eigenfunction
and one eigenvalue of A.
Chapter 3 Solutions
Introduction To Quantum Mechanics
Ch. 3.1 - Prob. 3.1PCh. 3.1 - Prob. 3.2PCh. 3.2 - Prob. 3.3PCh. 3.2 - Prob. 3.4PCh. 3.2 - Prob. 3.5PCh. 3.2 - Prob. 3.6PCh. 3.3 - Prob. 3.7PCh. 3.3 - Prob. 3.8PCh. 3.3 - Prob. 3.9PCh. 3.3 - Prob. 3.10P
Ch. 3.4 - Prob. 3.11PCh. 3.4 - Prob. 3.12PCh. 3.4 - Prob. 3.13PCh. 3.5 - Prob. 3.14PCh. 3.5 - Prob. 3.15PCh. 3.5 - Prob. 3.16PCh. 3.5 - Prob. 3.17PCh. 3.5 - Prob. 3.18PCh. 3.5 - Prob. 3.19PCh. 3.5 - Prob. 3.20PCh. 3.5 - Prob. 3.21PCh. 3.5 - Prob. 3.22PCh. 3.6 - Prob. 3.23PCh. 3.6 - Prob. 3.24PCh. 3.6 - Prob. 3.25PCh. 3.6 - Prob. 3.26PCh. 3.6 - Prob. 3.27PCh. 3.6 - Prob. 3.28PCh. 3.6 - Prob. 3.29PCh. 3.6 - Prob. 3.30PCh. 3 - Prob. 3.31PCh. 3 - Prob. 3.32PCh. 3 - Prob. 3.33PCh. 3 - Prob. 3.34PCh. 3 - Prob. 3.35PCh. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Prob. 3.39PCh. 3 - Prob. 3.40PCh. 3 - Prob. 3.41PCh. 3 - Prob. 3.42PCh. 3 - Prob. 3.43PCh. 3 - Prob. 3.44PCh. 3 - Prob. 3.45PCh. 3 - Prob. 3.47PCh. 3 - Prob. 3.48P
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