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PHYS 130B

Quantum Physics II

Schedule of Classes

  • Lecture: Mon, Wed, Fri. 9:00 AM - 9:50 AM, PODEM 1A19

  • Discussion session: Thu. 5:10 PM - 6:00 PM, WLH 2111

  • Instructor: Yi-Zhuang You (尤亦庄) (sounds like EACH-ONE, YOU) (He/Him/His)

  • Teaching Assistants: Wanda Hou. Email: hwanda@ucsd.edu

  • Course Grade Allocation:
    • Homework: 70%
    • Mid-term Exam: 10%
    • Final Exam: 20%
  • Assignment and Submission Platform:
    • Homework and exams are online. They will all be assigned and submitted via the UCSD Canvas platform.

  • Homework Guidelines:

    • Assignments will occur irregularly, depending on when the homework problem is encountered in the lecture.

    • A recommended deadline will be provided for each assignment. However, there are no penalties for late submissions (meaning that submissions are accepted until the end of the quarter). But please kindly manage your submissions to alleviate the TA’s workload.

    • For homework, discussion among students and consulting with the TA are allowed. You may utilize all educational resources (including AI language models). Nevertheless, you are required to complete your assignments by yourself to maintain academic integrity. You are encouraged to acknowledge in your homework the resources that are helpful to you.

  • Examination Policies:

    • The scheduling for the mid-term and final exams has yet to be determined. Your input regarding preferred time slots is welcome.

    • Exams will be announced online, and you will typically be given a two-day window for completion. Extensions may be granted under exceptional circumstances.

    • All exams are take-home and open-book in nature. You are permitted to consult textbooks and lecture notes, employ computational tools, browse online resources, and interact with AI language models. However, discussing the exam content with other humans is not allowed.

Textbooks

The lecture will follow these books:

[1] Leonard Susskind and Art Friedman, Quantum Mechanics (the Theoretical Minimum). Basic Books, New York. (2014). (PDF)

[2] Arjun Berera and Luigi Del Debbio, Quantum Mechanics. Cambridge University Press, New York (2021).

Some other books for reference:

[3] J. J. Sakurai, Modern Quantum Mechanics. Addison-Wesley Publishing Company. (1994).

[4] R. Shankar, Principles of Quantum Mechanics. Plenum Press, New York. (1994)

Lecture Notes

As a UCSD student, you have free access to Mathematica (see how).

Part I. Matrix Mechanics (Mathematica) (PDF)

  • Introduction
    • Everything is a Vector
    • Complex Algebra
    • Linear Algebra
  • Quantum States
    • Ket and Bra
    • Scalar Product
    • Basis and Hilbert Space
    • Born’s Rule
  • Quantum Operator
    • Matrix Representation
    • Operator Algebra
  • Measurement
    • Hermitian Operators
    • Observables
  • Dynamics
    • Unitary Operators
    • Time Evolution

Part II. Algebraic Methods (Mathematica) (PDF)

  • Introduction
    • Functions are Vectors
    • Position and Momentum
  • Harmonic Oscillator
    • Operator Algebra
    • Quantum Bootstrap
    • Representation Theory
  • Angular Momentum
    • Operator Algebra
    • Quantum Bootstrap
    • Representation Theory
    • Fusion Category
  • Hydrogen Atom
    • Background: Classical Mechanics
    • SO(4) Symmetry
    • Spectrum

Part III. Quantum Statistics (Mathematica) (PDF)

  • Introduction
    • Tensors are Vectors
    • Quantum Many-Body States
  • Second Quantization
    • Fock Space
    • Creation and Annihilation Operators
  • Quantum Statistical Physics
    • General Principles
    • Bose-Einstein Statistics
    • Fermi-Dirac Statistics

Part IV. Perturbation Theory (Mathematica) (PDF)

  • Time-Independent Perturbation
    • A Toy Model of Qubit
    • Non-Degenerate Perturbation Theory
    • Degenerate Perturbation Theory
  • Time-Dependent Perturbation
    • Time-Dependent Perturbation Theory
    • Energy Level Transitions

Final Review (Mathematica) (PDF)