HW1
Due Friday, 2/9/2007 5:15 pm
Start reading Chapter 6 E&R
Chapter 5, Questions: 16, 24, 28, 31
Chapter 5, Problems: 7, 913, 18, 28
Evaluate the following commutators
(a) [x,E] = ?
(b) [p,x] = ?
(c) [x,p
2
] = ?
I have added two problems:
Chapter 5 Problem 27
A woman is walking along Intercampus drive.
She
has a mass of 52 kg and is walking at 1 m/s.
(a)
She is not paying careful attention and is walking straight
towards the wall of the new BME/Optics building.
Assume that the
wall is infinitely hard and that she can be described as a plane wave
(a free particle). As she “bounces” off the wall, her incident
and reflected wavefunctions interfere.
What is the spacing of the
nodes in her 
Ψ

2
?
(b) Next, she approaches a curb of height 25 cm and steps over it.
as we will see in class this week, quantum mechanically she
as a finite probability of bouncing off (being reflected off) the
curb.
What is her reflection coefficient?
HW2
Due Friday, 2/16/2007 5:15 pm
Continue reading Chapter 6 E&R
E&R Chapter 6
Questions 7, 9, 11
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HW3
Due Friday, 3/2/2007 5:15 p. m.
E&R Chapter 6
Questions 23, 27
Problems 17, 23, 27, 29, 21 and 30 (these two are related), and 34.
HW4
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 Spring '09
 Simple Harmonic Oscillator, Sho, E&R Chapter

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