Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
3rd Edition
ISBN: 9781107189638
Author: Griffiths, David J., Schroeter, Darrell F.
Publisher: Cambridge University Press
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Chapter 6.4, Problem 6.12P
To determine

Show that, due to this equation ΠSΠ=S, matrix must be a constant times the identity matrix Π=aI.

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