Ninnat / quantum-mechanics-1-2022

A repository for M897564 Non-Relativistic Quantum Mechanics, NU (second half)

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M897564 Non-Relativistic Quantum Mechanics (2nd half)

Announcements

  • 10 Oct: This week, we will meet on Tuesday 10:30-12:00, Wednesday 13:30-15:00, and finally Thursday (online) 10:30-12:00 to finish off this course.
  • 4 Oct: The due date for HW2 is moved to Friday, October 7th
  • 4 Oct: The last homework set is out. It should be due some time in the week of October 17th to 21st. Beware that it contains 6 problems, so manage your time well.
  • 24 Sep: The full homework set 2 (now v3) is out.
  • 19 Sep: The due date for HW1 is moved to Wednesday, September 21st
  • 6 Sep: The make-up class on Thursday, September 8th will be from 13:30 to 15:00.
  • 6 Sep: Homework 1 (v3) is out. Due to the fact that you will be having the midterm exam on September 14th, the tentative due date of the homework is Monday, September 19th (midnight, before Tuesday).

Resources

  • [C-T] Quantum Mechanics, Claude Cohen-Tannoudji, Bernard Diu, and Franck Laloë, Volumes 1 and 2 (1977)
  • [Bal] Quantum Mechanics: A Modern Development, Leslie E. Ballentine (1998)

Schedule

Homework Date Topics Lecture note Resources Additional resources
T 30 Aug Interlude, Review of postulates of quantum mechanics, Wigner's theorem, Ehrenfest theorem
  • A proof of Wigner's theorem can be found in Weinberg's The Quantum Theory of Fields, Vol.1.
  • Time evolution operator as a time-ordered exponential, Howard Haber
  • W 31 Aug No tutorial class
    Th 1 Sep No class (We Are IF activity)
    HW1v3 OUT
    DUE W 21 Sep
    T 6 Sep Simple Harmonic Oscillator (SHO) I: Heisenberg equations of motion, ladder operators, the spectrum SHO I-III C-T: V
    BV
    GV
    Harmonic oscillators and coherent states, Robert G. Littlejohn
    W 7 Sep Moved to the afternoon of Th 8 Sep
    Th 8 Sep SHO II: The spectrum (cont.), reminders about wave mechanics, statistical moments in stationary states
    Th 8 Sep
    13:30-15:00
    (Special time!)
    SHO III: Coherent states and classical behavior
    T 13 Sep Coherent states (cont.) and summary. Two-level systems I: polarization and Poincaré sphere Two-level systems I-III C-T: IV
    AIV
    BIV
    (EIV)
    (FIV)
    Animation of linear, circular, and elliptical polarization
    W 14 Sep No tutorial class (Midterm exam)
    Th 15 Sep Two-level systems II: Poincaré/Bloch sphere geometry, Pauli matrix algebra
    T 20 Sep Two-level systems III: Poincaré/Bloch sphere geometry (cont.) Notes on Einstein summation convention
    from my Classical Electrodynamics course
    W 21 Sep Angular momentum I: General properties Angular Momentum I-II C-T: VI
    AVI
    BVI
    Bal: 7.1-7.6
    HW2v3 OUT
    DUE F 7 Oct
    Th 22 Sep Angular momentum II: General properties (cont.), the spectrum
    T 27 Sep Symmetries and transformations I: group representations and Lie algebras, the translation group Symmetries and angular momentum III Walter Appel, Mathematics for Physics and Physicists
    W 28 Sep HW1 discussion
    Th 29 Sep Symmetries and transformations II: The rotation group
    HW3 OUT
    DUE Su 23 Oct
    T 4 Oct Angular momentum III: spherical harmonics
    W 5 Oct No tutorial class
    Th 6 Oct Addition of angular momenta I: Tensor product Addition of angular momenta I-II C-T: X (Vol.2)
    DX
    EX
    Bal: 7.5-7.8
    Ballentine's and Zettili's notational error regarding spherical tensors, G.A. Raggio
    T 11 Oct 10:30-12:00 (Special time!) Addition of angular momenta II: Clebsch-Gordan series
    W 12 Oct Addition of angular momenta III: Spherical vector and tensor operators
    Th 13 Oct 10:30-12:00 (Special time!) Addition of angular momenta IV: Wigner-Eckart theorem and its applications: superselection rules Note from the online lecture
    Take-home exam 7-9 Nov

    Grading scheme

    For the whole course

    • 40% Assignments (3 assignments for my parts)
    • 30% Midterm exam
    • 30% Final exam

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    A repository for M897564 Non-Relativistic Quantum Mechanics, NU (second half)