Physics 911   Quantum Mechanics II

                                      Fall 2007

                                                           TU 2:30-3:45    CW 146


Instructor: C. D. Lin
CW230   532-1617
Help hours:  

 Wednesdays 5:00- 7:30pm


     Michel Le Bellac, "Quantum Physics",  2006 Cambridge University Press

   Any typical Quantum Mechanics textbooks.

   The next two books will also be used  specficially: Merzbacher, Schiff


  two quizzes    25 % each

  final               25 %

  Homework    25 %

   Examination dates:

    Exam 1:    10/4/07

    Exam 2:   11/15/07

    Final exam (comprehensive)  : 12/12/07 

Class goal:                 Cover these chapters of  Le Bellac

                              chapter 8  symmetry

                                           9   wave mechanics, mostly summary

                                         10  angular momentum

                                         11   The harmonic oscillator

                                         12   scattering theory

                                         13   Identical particles

                 If additional time is available, will add some applications.


Detailed description of subjects covered in QMII 2007

Use materials from La Bellac (La) and from Merzbacher (Mer)


1. Symmetry in QM: La 8.1, 8.2,  8.3.

2. Angular momentum and tensor operator : La 10.1, 10.2, 10.3, 10.4 (supplemental materials on appications were added)

3. Scattering Theory: from La Bellac, Merzbacher, Schiff

    (potential scattering, partial wave expansion, resonances, scattering length, integral equation, Green function, Coulomb problem)

4. Idential particles: from La Bellac, Schiff (spin statistics, scattering of identical particles)

5. The harmonic oscillator and field quantization : La Bellac

    (N-representation, quantization of EM fields; vacuum fluctuations)


Grading scheme:

         Two exams during the semester    25%  each

         One final exam.  25 %

         Homework         25 %


Homework assignment -- procedure and rules

 1. A new set will be given for each chapter and will be posted on the web. The due date for each set will be announced through e-mails.

2. I will take a quick look at each homework returned. I encourage students to work together. I would ask the formation of groups, each group consists of three or four students. Still each student writes her/his own report. 

3. For each homework assignment, you will get 25 points for attempting all of them. Partial efforts will get partial credits.

4. Each time, I will choose reports from four students at random for more careful grading. Additional points will be added to these students if the report is well done. The maximum additional points will be 10 for each paper I read. Weaker students have more chances to be selected for this category.

5. Each week I will select one or more students to prepare the "solutions" of the given problems, rewritten in a "neat" form which will then be posted on the web. Each posting will "earn" you ten points and your name will appear on the solution.

6. If you get 25 points from each homework assigned, at the end of the semester the grade for the homework portion will be 25 points. The additional points you "earned" will be the bonus. Thus if we have ten assignments and you get 250 points at the end of the semester your homework grade will be 25. If you get 100 points of bonus plus the 250 points, your homework grade will be 25x350/250=35 points.

Summary and Reviews

1. Reserve Wednesdays late afternoon 5:00-6:30pm for this class. The time will be used for make-up lectures or for help sessions.

2. At the end of each chapter there will be a short summary.


Students are encouraged to send e-mails or visit with me for suggestions for improving your learning experience.  

Students with disabilities:
   If you have any condition such as a physical or learning disability, which will make it difficult for you to carry out the work as I have outlined it or which will require academic accommodations, please notify me and contact the Disabled Students Office (Holton 202), in the first two weeks of the course

  Plagiarism and cheating are serious offenses and may be punished by failure on the exam, paper or project; failure in the course; and/or expulsion from the University.  For more information refer to the “Academic Dishonesty” policy in K-State Undergraduate Catalog and the Undergraduate Honor System Policy on the Provost’s web page at