In this problem we represent the spin eigenfunctions and operators as vectors and matrices. a. The spin

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In this problem we represent the spin eigenfunctions and operators as vectors and matrices.

a. The spin eigenfunctions are often represented as the column vectors

1 and B = %3D

Show that α and β are orthogonal using this representation.

b. If the spin angular momentum operators are represented by the matrices

ħ(0 1 ħ(1 0 20 -1 -i 2|1 2 i

show that the commutation rule [ŝx ,ŝy] = ihŝz holds.

c. Show that

d. Show that α and β are eigenfunctions of ŝz and ŝ2. What are the eigenvalues?

e. Show that α and β are not eigenfunctions of ŝx and ŝy.

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Physical Chemistry

ISBN: 978-0321812001

3rd edition

Authors: Thomas Engel, Philip Reid

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