Bilkent University     Department of Physics

PHYS 326 - QUANTUM MECHANICS - II


Semester:Spring 2026
Instructor: Cemal Yalabık
Office: Room SA-228 Phone 1316
 
Office Hours: Fridays13:00 - 14:00 Room SA-228
All other times (if available -
call 1316 to check)  
Room SA-228
Assistant: Abdulhay Can Kara
Homework: Policy Assignments
 
Exams & Grading: "Cheat sheets" will not be allowed during the exams, but you will be provided with sufficient information for solving the problems without memorization.

There is an attendance requirement for this course: A student may not miss more than 6 hours of class in order to pass the course. Further absences may be compensated by completing assignments which will take much longer time than the corresponding class time.

 
First Exam (Solutions) % Tuesday, March 10 15:30 - 17:20
Second Exam (Solutions) % Friday, April 10 10:30 - 12:20
Final Exam (Solutions) % Monday, May 5 12:00 - 15:00 (Room A-329)
Homework/Quiz/Participation %
Course Schedule:
First meeting: Friday, Jan. 23, 10:30 - 16:20 in Room
Tuesdays  15:30 - 16:20Room
Fridays 10:30 - 12:20Room
Recitation:Tuesdays  16:30 -  17:20Room
 
Textbook:
Introduction to Quantum Mechanics by Griffiths
Recommended:
Introduction to Quantum Mechanics by Griffiths and Schroeter
 

Homework: There will be weekly homework assignments in this course.

Problem solving sessions: Occasionally, we will hold problem solving sessions, during the recitation hour. A problem will be asked, and all students will be expected to solve the problem on their own. You can use your textbooks or notes, but may not discuss the problem with your friends. You may discuss it with the instructor. You will have to complete the solution and hand it in during the session, your solution will be graded as a quiz.

You can view your grades through the Stars system.

FZ Policy
In order to get a D grade from this course, a student must show an overall achievement level of %. An important part of this achievement must be accumulated through regular studying, before taking the final exam. The student must demonstrate this by accumulating sufficient pre-final points from the first and second exams such that the overall average will be over % even if the remaining assessment grades (i.e. Homework+Quiz+Final) average to less than or equal to twice this pre-final grade. (Also, see below for the attendance requirement.)

Therefore a student cannot get a D grade if the pre-final achivement level is below % from the first and second exams.

This means, a student will receive the FZ grade (and will not be able to take the final exam) if the average is lower than % from the first and second exams! (If the average is %, the student will need to receive from the remaining assesments [Homework+Quiz+Final] to get a D grade.)

Furthermore, there is an attendance requirement: If you miss more than 6 hours of lectures, you will need to compensate that by completing assignments which will take much longer time to do, or you will get an FZ. (Students who get a grade higher than 85 from the first or the second exam will be exempt from this requirement.)

Information about the attendance compensation homework:

Students who have missed more than 6 hours of class should contact me and obtain their individual assignments before Monday, April 27. (Absences after that date cannot be compensated!) The completed assignments, written in latex and generated in pdf format should be e-mailed as well as brought to me in printed form no later than 4th of May, 2026. In order for the assignment to be found satisfactory for compensation, the problem(s) assigned must be solved comprehensively, with numerical analysis if an analytic solution is not possible. (Typically, a student will have to spend more than 10 hours for a satisfactory assignment. In the past only a fraction of the submitted assignments were found to be satisfactory for passing!)

 



Addition of Angular Momenta
Clebsch-Gordan coefficients
No Tuesday class The radial Equation
Spherical Box, The Hydrogen Atom Identical Particles
Statistics, Entanglement Identical Particles
- applications to materials, etc. Time independent Perturbation Theory
- The non-degenerate case Time independent Perturbation Theory
- The non-degenerate case First Exam Time independent Perturbation Theory
- The degenerate case Spring Break + Holiday week Applications of Perturbation TheoryApplications of Perturbation Theory
- The Hydrogen atom Second Exam
Week (Monday) Subject Exam #1 #2 Variational Principle
- applications Time-dependent perturbation theory Time-dependent perturbation theory
- applications
No Friday class Time-dependent perturbation theory
- applications

Relevant links: