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Quantum Mechanics and Quantum Field Theory

Pretty Much Physics via YouTube

Overview

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Explore quantum mechanics and quantum field theory through this comprehensive video playlist covering fundamental concepts and advanced topics. Dive into perturbation theory, master the Dirac equation derivation and solutions, and understand Bra-Ket notation for quantum mechanical calculations. Learn about the Zeeman effect, Clebsch-Gordan coefficients, and the linear Stark effect in hydrogen atoms. Discover wave function normalization techniques, visualize qubits using the Bloch sphere, and apply the Wigner-Eckart theorem. Study expectation values, the Klein-Gordon equation for relativistic quantum mechanics, and spherical tensor operators. Master harmonic oscillator theory including ladder operators, eigenvalues, and eigenfunctions. Understand quantum information concepts like pure versus mixed states and the no-cloning theorem. Explore dynamical pictures in quantum mechanics, time evolution operators, and Heisenberg's equation of motion. Delve into quantum field theory fundamentals including gamma matrices, normal ordering, Grassmann number integration, and Mandelstam variables. Learn about symmetries in quantum mechanics including parity, time reversal, and conservation laws. Study advanced topics like the strong CP problem, axions, spinor transformations, and the quantum Zeno effect. Examine atomic and nuclear physics concepts including characteristic X-rays, proton decay, and the Rutherford-Bohr model.

Syllabus

Perturbation Theory in Quantum Mechanics - Cheat Sheet
Zeeman Effect | Normal, Anomalous & Paschen–Back Effect
Clebsch–Gordan Coefficients Explained
Dirac Equation | Derivation and Introduction
Linear Stark Effect | Quantum Mechanics | Hydrogen Atom
Bra Ket Notation | Quantum Mechanics
How to Normalize a Wave Function (+3 Examples) | Quantum Mechanics
Bloch Sphere | Visualizing Qubits and Spin | Quantum Information
Wigner–Eckart Theorem | Clebsch-Gordan & Spherical Tensor Operators
Expectation Values in Quantum Mechanics
Characteristic X-Rays | Nuclear Physics
Deriving Clebsch–Gordan Coefficients | Angular Momentum in Quantum Mechanics
Klein-Gordon Equation | Relativistic Quantum Mechanics
Spherical Tensor Operators | Wigner D-Matrices | Clebsch–Gordan & Wigner–Eckart
Harmonic Oscillator: Introduction | Quantum Mechanics
Pure VS Mixed States | Quantum Information
Ehrenfest's Theorem | Quantum Mechanics meets Classical Mechanics
Proton Decay | Nuclear Physics Beyond the Standard Model?
What are Quantum Fields? | Introduction to Quantum Field Theory
Variational Methods | Quantum Mechanics
Time Reversal Symmetry Operator | Quantum Mechanics
Dynamical Pictures | Schrödinger, Heisenberg, Interaction Picture
Compton Scattering & Compton Wavelength (Derivation)
2 Ways to Derive the Landé g-Factor | Easy → HARD
Solving the Dirac Equation | Rest Frame
Time Evolution Operator | Quantum Mechanics
Ladder Operators of Angular Momentum | Quantum Mechanics
Dirac Equation | Gamma Matrices
Hermitian Operators (Self-Adjoint Operators) | Quantum Mechanics
Schrödinger Equation in Momentum Space | Quantum Mechanics
Negative Energy Solutions in the Dirac Equation | Dirac Sea VS. Feynman–Stueckelberg
Bra-Ket Operators | Quantum Mechanics
Gamma Matrices in Action #1 | How to do Calculations with Gamma Matrices
Heisenberg Equation of Motion for Operators | Quantum Mechanics
Adjoint / Daggered Operators in Quantum Mechanics
Ladder Operators | Harmonic Oscillator | Quantum Mechanics
From the Dirac Lagrangian to the Dirac Equations | Non-Interacting Lagrangian Density
Parity in Quantum Mechanics: Position Operator
Strong CP Problem & Axions | Quantum Field Theory
No-Cloning Theorem (Proof) | No-Broadcast Theorem | Quantum Mechanics
Machine Learning in Physics | Numerical Physics
Why is Momentum a Hermitian Operator? | Quantum Mechanics
What is the Number Operator? | Harmonic Oscillator | Quantum Mechanics
Normal Order in Quantum Field Theory | Wick Order | Fermions & Bosons
Parity Symmetry in the Harmonic Oscillator | Quantum Mechanics
Deriving Heisenberg's Uncertainty Principle from General Uncertainty Relations
Para & Ortho Helium (Spin Isomers) | Quantum Mechanics
Calculating the Ground State of the Harmonic Oscillator | Quantum Mechanics
Gamma Matrices in Action #2 | How to do Calculations with Gamma Matrices
Wigner's 3j Symbols | Angular Momentum | Quantum Mechanics
Spinor Normalization | Solving the Dirac Equation
Why do Commuting Operators have a Shared Eigenbasis? | Quantum Mechanics
Dimensionless Variables | Quantum Harmonic Oscillator
Spinor Lorentz Transformations | How to Boost a Spinor
Why do Hermitian Operators have Real Eigenvalues? | Quantum Mechanics
How to Integrate over Grassmann Numbers in Quantum Field Theory? (Berezin Integral)
How to Freeze a Quantum State? | Quantum Zeno Effect
Mandelstam Variables in Quantum Field Theory (QFT)
Eigenvalues of the Harmonic Oscillator | Quantum Mechanics
Solving the Dirac Equation | Any Frame (Easy Mode)
Eigenfunctions of the Harmonic Oscillator
Properties of the Time Reversal Operator | Quantum Mechanics
Projection Theorem | Special Case of the Wigner–Eckart Theorem
When is a Physical Quantity Conserved in Quantum Mechanics?
Bra-Ket Position Basis & Momentum Basis | Wave Functions in Quantum Mechanics
Planck Scale | Where QFT and General Relativity Meet | Beyond the Standard Model
Entanglement and the EPR Paradox | #Halloween2019
Rutherford-Bohr Model | Atomic Physics
What is a Commutator? | Harmonic Oscillator
Condon-Shortley Phase Convention | Clebsch-Gordan Gets Real
Parseval-Plancherel Identity | Normalization in Quantum Mechanics
Time-Independent Schrödinger Equation | Quantum Mechanics
Discovery of the Proton | Open Questions in Nuclear Physics
The 2n+1 Theorem | Perturbation Theory | Quantum Mechanics
Solving the Dirac Equation | Any Frame (Hard Mode)
Is There a Lowest or Highest State in the Harmonic Oscillator? | Quantum Mechanics
Higher Eigenfunctions in the Harmonic Oscillator
Channel Trailer | Welcome to Pretty Much Physics
Photoelectric Effect | Basics

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