Fall 2021 - PHYS 385 D100

Quantum II (3)

Class Number: 1820

Delivery Method: In Person


  • Course Times + Location:

    Mo, We, Fr 11:30 AM – 12:20 PM
    AQ 5018, Burnaby

  • Exam Times + Location:

    Dec 18, 2021
    12:00 PM – 3:00 PM
    AQ 5008, Burnaby

  • Prerequisites:

    MATH 252 or MATH 254; MATH 260; PHYS 255; PHYS 285 or ENSC 380 or CHEM 260. All prerequisite courses require a minimum grade of C-. Recommended Prerequisite: PHYS 211.



Stern-Gerlach experiments and the structure of quantum mechanics; operators; angular momentum and spin; Schrödinger equation and examples for time evolution; systems of two spin-½ particles; density operators; wave mechanics in one dimension including the double slit experiment, particle in a box, scattering in one dimension, tunnelling; one-dimensional harmonic oscillator; coherent states. Quantitative.



1. The Stern-Gerlach experiments and the spin of electron
2. Rotations and matrix mechanics: operators, eigenvalues, eigenstates
3. Angular momentum eigenstates using ladder operators
4. Commutators, and the uncertainty relations
5. Time evolution and the Schrödinger equation, spin precession, magnetic resonance
6. Two spin-1/2 particles, EPR paradox, Bell's inequality
7. Entanglement, quantum teleportation
8. Wave mechanics in one dimension: coordinate and momentum basis
9. Solutions to Schrödinger equation in 1D: free particle, particle in a box, scattering
10. Harmonic oscillator, coherent states


  • Homework 30%
  • Exams 70%



Required book:
"A modern approach to quantum mechanics" by John. S. Townsend, 2nd Edition

Department Undergraduate Notes:

Students who cannot write their exam during the course's scheduled exam time must request accommodation from their instructor in writing, clearly stating the reason for this request, within one week of the final exam schedule being posted.

Registrar Notes:


SFU’s Academic Integrity web site http://www.sfu.ca/students/academicintegrity.html is filled with information on what is meant by academic dishonesty, where you can find resources to help with your studies and the consequences of cheating.  Check out the site for more information and videos that help explain the issues in plain English.

Each student is responsible for his or her conduct as it affects the University community.  Academic dishonesty, in whatever form, is ultimately destructive of the values of the University. Furthermore, it is unfair and discouraging to the majority of students who pursue their studies honestly. Scholarly integrity is required of all members of the University. http://www.sfu.ca/policies/gazette/student/s10-01.html


Teaching at SFU in fall 2021 will involve primarily in-person instruction, with approximately 70 to 80 per cent of classes in person/on campus, with safety plans in place.  Whether your course will be in-person or through remote methods will be clearly identified in the schedule of classes.  You will also know at enrollment whether remote course components will be “live” (synchronous) or at your own pace (asynchronous).

Enrolling in a course acknowledges that you are able to attend in whatever format is required.  You should not enroll in a course that is in-person if you are not able to return to campus, and should be aware that remote study may entail different modes of learning, interaction with your instructor, and ways of getting feedback on your work than may be the case for in-person classes.

Students with hidden or visible disabilities who may need class or exam accommodations, including in the context of remote learning, are advised to register with the SFU Centre for Accessible Learning (caladmin@sfu.ca or 778-782-3112) as early as possible in order to prepare for the fall 2021 term.