Physics 424: Quantum Mechanics, Fall 2015
Reading/Homework Assignment 9
Due in Class Friday, 11/20/15
1
Course announcements
•
There will be no class Wednesday 11/25 (the day before Thanks-
giving).
We can do this because we are having two evening exams.
•
Midterm Exam 2 will be 7-9pm Tuesday 12/1/15 in Hasbrouck
134.
There will be an optional review session starting 7pm Monday
11/30/15 in Hasbrouck 138.
Reading
•
Finish reading Townsend Ch. 6, Wave Mechanics in One Dimension:
–
Secs. 6.9 (Particle in a box) and 6.11 (Summary) are important
to read.
–
Sec. 6.10 (Scattering in one dimension) is optional and will not
appear on homework or tests, but you may find it interesting.
•
Readings in Townsend Ch. 7, The One-Dimensional Harmonic Oscilla-
tor:
–
We will cover Sec. 7.10 (Inversion symmetry and the parity oper-
ator) first, so you may want to read it first.
–
The key material we will cover in lecture, homework, and exams
is Secs.
7.1 (Importance of the HO), 7.2 (Operator methods),
7.4 (Position-space wave functions), 7.6 (The large-
n
limit), 7.10,
and 7.11 (Summary).
–
Every student of quantum mechanics should work through the
recursion-relation solution to the HO TISE , so I would like you
to read Sec. 7.9 (Solving the SE in position space) carefully, but
it is not in the homework or exams.
1
2015-11-11 P424 HW9.tex c 2015 Donald Candela
1

•
We will be skipping over Townsend Ch. 8 (Path Integrals). While you
don’t need it for this homework, we will start covering Ch. 9 (Wave
mechanics in three dimensions) later this week.

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