- 1 Course Summary
- 1.1 Problems with Classical Physics
- 1.2 Thought Experiments on Diffraction
- 1.3 Probability Amplitudes
- 1.4 Wave Packets and Uncertainty
- 1.5 Operators
- 1.6 Expectation Values
- 1.7 Commutators
- 1.8 The Schr ̈odinger Equation
- 1.9 Eigenfunctions, Eigenvalues and Vector Spaces
- 1.10 A Particle in a Box
- 1.11 Piecewise Constant Potentials in One Dimension
- 1.12 The Harmonic Oscillator in One Dimension
- 1.13 Delta Function Potentials in One Dimension
- 1.14 Harmonic Oscillator Solution with Operators
- 1.15 More Fun with Operators
- 1.16 Two Particles in 3 Dimensions
- 1.17 Identical Particles
- 1.18 Some 3D Problems Separable in Cartesian Coordinates
- 1.19 Angular Momentum
- 1.20 Solutions to the Radial Equation for Constant Potentials
- 1.21 Hydrogen
- 1.22 Solution of the 3D HO Problem in Spherical Coordinates
- 1.23 Matrix Representation of Operators and States
- 1.24 A Study ofℓ= 1 Operators and Eigenfunctions
- 1.25 Spin 1/2 and other 2 State Systems
- 1.26 Quantum Mechanics in an Electromagnetic Field
- 1.27 Local Phase Symmetry in Quantum Mechanics and the Gauge Symmetry
- 1.28 Addition of Angular Momentum
- 1.29 Time Independent Perturbation Theory
- 1.30 The Fine Structure of Hydrogen
- 1.31 Hyperfine Structure
- 1.32 The Helium Atom
- 1.33 Atomic Physics
- 1.34 Molecules
- 1.35 Time Dependent Perturbation Theory
- 1.36 Radiation in Atoms
- 1.37 Classical Field Theory
- 1.38 The Classical Electromagnetic Field
- 1.39 Quantization of the EM Field
- 1.40 Scattering of Photons
- 1.41 Electron Self Energy
- 1.42 The Dirac Equation
- 1.43 The Dirac Equation
- 2 The Problems with Classical Physics
- 2.1 Black Body Radiation*
- 2.2 The Photoelectric Effect
- 2.3 The Rutherford Atom*
- 2.4 Atomic Spectra*.
- 2.4.1 The Bohr Atom*
- 2.5 Derivations and Computations
- 2.5.1 Black Body Radiation Formulas*
- 2.5.2 The Fine Structure Constant and the Coulomb Potential
- 2.6 Examples
- 2.6.1 The Solar Temperature*
- 2.6.2 Black Body Radiation from the Early Universe*.
- 2.6.3 Compton Scattering*
- 2.6.4 Rutherford’s Nuclear Size*.
- 2.7 Sample Test Problems
- 3 Diffraction
- 3.1 Diffraction from Two Slits
- 3.2 Single Slit Diffraction
- 3.3 Diffraction from Crystals
- 3.4 The DeBroglie Wavelength
- 3.4.1 Computing DeBroglie Wavelengths
- 3.5 Wave Particle Duality (Thought Experiments)
- 3.6 Examples
- 3.6.1 Intensity Distribution for Two Slit Diffraction*
- 3.6.2 Intensity Distribution for Single Slit Diffraction*.
- 3.7 Sample Test Problems
- 4 The Solution: Probability Amplitudes
- 4.1 Derivations and Computations
- 4.1.1 Review of Complex Numbers
- 4.1.2 Review of Traveling Waves
- 4.2 Sample Test Problems
- 4.1 Derivations and Computations
- 5 Wave Packets
- 5.1 Building a Localized Single-Particle Wave Packet
- 5.2 Two Examples of Localized Wave Packets
- 5.3 The Heisenberg Uncertainty Principle
- 5.4 Position Space and Momentum Space
- 5.5 Time Development of a Gaussian Wave Packet*
- 5.6 Derivations and Computations
- 5.6.1 Fourier Series*.
- 5.6.2 Fourier Transform*
- 5.6.3 Integral of Gaussian
- 5.6.4 Fourier Transform of Gaussian*
- 5.6.5 Time Dependence of a Gaussian Wave Packet*.
- 5.6.6 Numbers
- 5.6.7 The Dirac Delta Function
- 5.7 Examples
- 5.7.1 The Square Wave Packet
- 5.7.2 The Gaussian Wave Packet*
- 5.7.3 The Dirac Delta Function Wave Packet*
- 5.7.4 Can I “See” inside an Atom
- 5.7.5 Can I “See” inside a Nucleus
- 5.7.6 Estimate the Hydrogen Ground State Energy
- 5.8 Sample Test Problems
- 6 Operators
- 6.1 Operators in Position Space
- 6.1.1 The Momentum Operator
- 6.1.2 The Energy Operator
- 6.1.3 The Position Operator
- 6.1.4 The Hamiltonian Operator
- 6.2 Operators in Momentum Space
- 6.3 Expectation Values
- 6.4 Dirac Bra-ket Notation
- 6.5 Commutators
- 6.6 Derivations and Computations
- 6.6.1 Verify Momentum Operator
- 6.6.2 Verify Energy Operator
- 6.7 Examples
- 6.7.1 Expectation Value of Momentum in a Given State
- 6.7.2 Commutator ofEandt
- 6.7.3 Commutator ofEandx.
- 6.7.4 Commutator ofpandxn
- 6.7.5 Commutator ofLxandLy
- 6.8 Sample Test Problems
- 6.1 Operators in Position Space
- 7 The Schr ̈odinger Equation
- 7.1 Deriving the Equation from Operators
- 7.2 The Flux of Probability*
- 7.3 The Schr ̈odinger Wave Equation
- 7.4 The Time Independent Schr ̈odinger Equation
- 7.5 Derivations and Computations
- 7.5.1 Linear Operators
- 7.5.2 Probability Conservation Equation*.
- 7.6 Examples
- 7.6.1 Solution to the Schr ̈odinger Equation in a Constant Potential
- 7.7 Sample Test Problems
- 8 Eigenfunctions, Eigenvalues and Vector Spaces
- 8.1 Eigenvalue Equations
- 8.2 Hermitian Conjugate of an Operator
- 8.3 Hermitian Operators
- 8.4 Eigenfunctions and Vector Space
- 8.5 The Particle in a 1D Box
- 8.5.1 The Same Problem with Parity Symmetry
- 8.6 Momentum Eigenfunctions
- 8.7 Derivations and Computations
- 8.7.1 Eigenfunctions of Hermitian Operators are Orthogonal
- 8.7.2 Continuity of Wavefunctions and Derivatives
- 8.8 Examples
- 8.8.1 Hermitian Conjugate of a Constant Operator
- 8.8.2 Hermitian Conjugate of∂x∂
- 8.9 Sample Test Problems
- 9 One Dimensional Potentials
- 9.1 Piecewise Constant Potentials in 1D
- 9.1.1 The General Solution for a Constant Potential
- 9.1.2 The Potential Step
- 9.1.3 The Potential Well withE > 0 *.
- 9.1.4 Bound States in a Potential Well*.
- 9.1.5 The Potential Barrier
- 9.2 The 1D Harmonic Oscillator
- 9.3 The Delta Function Potential*.
- 9.4 The Delta Function Model of a Molecule*.
- 9.5 The Delta Function Model of a Crystal*
- 9.6 The Quantum Rotor
- 9.7 Derivations and Computations
- 9.7.1 Probability Flux for the Potential Step*
- 9.7.2 Scattering from a 1D Potential Well*
- 9.7.3 Bound States of a 1D Potential Well*.
- 9.7.4 Solving the HO Differential Equation*
- 9.7.5 1D Model of a Molecule Derivation*.
- 9.7.6 1D Model of a Crystal Derivation*
- 9.8 Examples
- 9.9 Sample Test Problems
- 9.1 Piecewise Constant Potentials in 1D
- 10 Harmonic Oscillator Solution using Operators
- 10.1 IntroducingAandA†
- 10.2 Commutators ofA,A†andH.
- 10.3 Use Commutators to Derive HO Energies
- 10.3.1 Raising and Lowering Constants
- 10.4 Expectation Values ofpandx.
- 10.5 The Wavefunction for the HO Ground State
- 10.6 Examples
- 10.6.1 The expectation value ofxin eigenstate
- 10.6.2 The expectation value ofpin eigenstate
- 10.6.3 The expectation value ofxin the state√^12 (u 0 +u 1 ).
- 10.6.4 The expectation value of^12 mω^2 x^2 in eigenstate
- 10.6.5 The expectation value of p
- 2 min eigenstate
- 10.6.6 Time Development Example
- 10.7 Sample Test Problems
- 11 More Fun with Operators
- 11.1 Operators in a Vector Space
- 11.1.1 Review of Operators
- 11.1.2 Projection Operators|j〉〈j|and Completeness
- 11.1.3 Unitary Operators
- 11.2 A Complete Set of Mutually Commuting Operators
- 11.3 Uncertainty Principle for Non-Commuting Operators
- 11.4 Time Derivative of Expectation Values*.
- 11.5 The Time Development Operator*.
- 11.6 The Heisenberg Picture*
- 11.7 Examples
- 11.7.1 Time Development Example
- 11.8 Sample Test Problems
- 11.1 Operators in a Vector Space
- 12 Extending QM to Two Particles and Three Dimensions
- 12.1 Quantum Mechanics for Two Particles
- 12.2 Quantum Mechanics in Three Dimensions
- 12.3 Two Particles in Three Dimensions
- 12.4 Identical Particles
- 12.5 Sample Test Problems
- 13 3D Problems Separable in Cartesian Coordinates
- 13.1 Particle in a 3D Box
- 13.1.1 Filling the Box with Fermions
- 13.1.2 Degeneracy Pressure in Stars
- 13.2 The 3D Harmonic Oscillator
- 13.3 Sample Test Problems
- 13.1 Particle in a 3D Box
- 14 Angular Momentum
- 14.1 Rotational Symmetry
- 14.2 Angular Momentum Algebra: Raising and Lowering Operators
- 14.3 The Angular Momentum Eigenfunctions
- 14.3.1 Parity of the Spherical Harmonics
- 14.4 Derivations and Computations
- 14.4.1 Rotational Symmetry Implies Angular Momentum Conservation
- 14.4.2 The Commutators of the Angular Momentum Operators
- 14.4.3 Rewritingp
- 2 μUsingL
- 14.4.3 Rewritingp
- 14.4.4 Spherical Coordinates and the Angular Momentum Operators.
- 14.4.5 The OperatorsL±
- 14.5 Examples
- 14.5.1 The Expectation Value ofLz
- 14.5.2 The Expectation Value ofLx
- 14.6 Sample Test Problems
- 15 The Radial Equation and Constant Potentials*
- 15.1 The Radial Equation*.
- 15.2 Behavior at the Origin*.
- 15.3 Spherical Bessel Functions*.
- 15.4 Particle in a Sphere*
- 15.5 Bound States in a Spherical Potential Well*
- 15.6 Partial Wave Analysis of Scattering*
- 15.7 Scattering from a Spherical Well*
- 15.8 The Radial Equation foru(r) =rR(r)*.
- 15.9 Sample Test Problems
- 16 Hydrogen
- 16.1 The Radial Wavefunction Solutions
- 16.2 The Hydrogen Spectrum
- 16.3 Derivations and Calculations
- 16.3.1 Solution of Hydrogen Radial Equation*.
- 16.3.2 Computing the Radial Wavefunctions*
- 16.4 Examples
- 16.4.1 Expectation Values in Hydrogen States
- 16.4.2 The Expectation of^1 rin the Ground State
- 16.4.3 The Expectation Value ofrin the Ground State
- 16.4.4 The Expectation Value ofvrin the Ground State
- 16.5 Sample Test Problems
- 17 3D Symmetric HO in Spherical Coordinates*
- 18 Operators Matrices and Spin
- 18.1 The Matrix Representation of Operators and Wavefunctions
- 18.2 The Angular Momentum Matrices*.
- 18.3 Eigenvalue Problems with Matrices
- 18.4 Anℓ= 1 System in a Magnetic Field*
- 18.5 Splitting the Eigenstates with Stern-Gerlach
- 18.6 Rotation operators forℓ= 1*.
- 18.7 A Rotated Stern-Gerlach Apparatus*
- 18.8 Spin
- 18.9 Other Two State Systems*
- 18.9.1 The Ammonia Molecule (Maser)
- 18.9.2 The Neutral Kaon System*
- 18.10Examples
- 18.10.1Harmonic Oscillator Hamiltonian Matrix
- 18.10.2Harmonic Oscillator Raising Operator
- 18.10.3Harmonic Oscillator Lowering Operator
- 18.10.4Eigenvectors ofLx
- 18.10.5A 90 degree rotation about the z axis.
- 18.10.6Energy Eigenstates of anℓ= 1 System in a B-field
- 18.10.7A series of Stern-Gerlachs
- 18.10.8Time Development of anℓ= 1 System in a B-field: Version I
- 18.10.9Expectation ofSxin General Spin^12 State
- 18.10.10Eigenvectors ofSxfor Spin
- 18.10.11Eigenvectors ofSyfor Spin
- 18.10.12Eigenvectors ofSu
- 18.10.13Time Development of a Spin^12 State in a B field
- 18.10.14Nuclear Magnetic Resonance (NMR and MRI)
- 18.11Derivations and Computations
- 18.11.1Theℓ= 1 Angular Momentum Operators*
- 18.11.2Compute [Lx,Ly] Using Matrices*.
- 18.11.3Derive the Expression for Rotation OperatorRz*
- 18.11.4Compute theℓ= 1 Rotation OperatorRz(θz)*.
- 18.11.5Compute theℓ= 1 Rotation OperatorRy(θy)*
- 18.11.6Derive Spin^12 Operators
- 18.11.7Derive Spin^12 Rotation Matrices*.
- 18.11.8NMR Transition Rate in a Oscillating B Field
- 18.12Homework Problems
- 18.13Sample Test Problems
- 19 Homework Problems 130A
- 19.1 HOMEWORK
- 19.2 Homework
- 19.3 Homework
- 19.4 Homework
- 19.5 Homework
- 19.6 Homework
- 19.7 Homework
- 19.8 Homework
- 19.9 Homework
- 20 Electrons in an Electromagnetic Field
- 20.1 Review of the Classical Equations of Electricity and Magnetism in CGS Units
- 20.2 The Quantum Hamiltonian Including a B-field
- 20.3 Gauge Symmetry in Quantum Mechanics
- 20.4 Examples
- 20.4.1 The Naive Zeeman Splitting
- 20.4.2 A Plasma in a Magnetic Field
- 20.5 Derivations and Computations
- 20.5.1 Deriving Maxwell’s Equations for the Potentials
- 20.5.2 The Lorentz Force from the Classical Hamiltonian
- 20.5.3 The Hamiltonian in terms of B
- 20.5.4 The Size of the B field Terms in Atoms
- 20.5.5 Energy States of Electrons in a Plasma I
- 20.5.6 Energy States of Electrons in a Plasma II
- 20.5.7 A Hamiltonian Invariant Under Wavefunction Phase (or Gauge)Transformations
- 20.5.8 Magnetic Flux Quantization from Gauge Symmetry
- 20.6 Homework Problems
- 20.7 Sample Test Problems
- 21 Addition of Angular Momentum
- 21.1 Adding the Spins of Two Electrons
- 21.2 Total Angular Momentum and The Spin Orbit Interaction
- 21.3 Adding Spin^12 to Integer Orbital Angular Momentum
- 21.4 Spectroscopic Notation
- 21.5 General Addition of Angular Momentum: The Clebsch-Gordan Series
- 21.6 Interchange Symmetry for States with Identical Particles
- 21.7 Examples
- 21.7.1 Counting states forℓ= 3 Plus spin
- 21.7.2 Counting states for ArbitraryℓPlus spin
- 21.7.3 Addingℓ= 4 toℓ=
- 21.7.4 Two electrons in an atomic P state
- 21.7.5 The parity of the pion fromπd→nn.
- 21.8 Derivations and Computations
- 21.8.1 Commutators of Total Spin Operators
- 21.8.2 Using the Lowering Operator to Find Total Spin States
- 21.8.3 Applying theS^2 Operator toχ 1 mandχ
- 21.8.4 Adding anyℓplus spin
- 21.8.5 Counting the States for|ℓ 1 −ℓ 2 |≤j≤ℓ 1 +ℓ
- 21.9 Homework Problems
- 21.10Sample Test Problems
- 22 Time Independent Perturbation Theory
- 22.1 The Perturbation Series
- 22.2 Degenerate State Perturbation Theory
- 22.3 Examples
- 22.3.1 H.O. with anharmonic perturbation (ax^4 ).
- 22.3.2 Hydrogen Atom Ground State in a E-field, the Stark Effect.
- 22.3.3 The Stark Effect for n=2 Hydrogen.
- 22.4 Derivations and Computations
- 22.4.1 Derivation of 1st and 2nd Order Perturbation Equations
- 22.4.2 Derivation of 1st Order Degenerate Perturbation Equations
- 22.5 Homework Problems
- 22.6 Sample Test Problems
- 23 Fine Structure in Hydrogen
- 23.1 Hydrogen Fine Structure
- 23.2 Hydrogen Atom in a Weak Magnetic Field
- 23.3 Examples
- 23.4 Derivations and Computations
- 23.4.1 The Relativistic Correction
- 23.4.2 The Spin-Orbit Correction
- 23.4.3 Perturbation Calculation for Relativistic Energy Shift
- 23.4.4 Perturbation Calculation for H2 Energy Shift
- 23.4.5 The Darwin Term
- 23.4.6 The Anomalous Zeeman Effect
- 23.5 Homework Problems
- 23.6 Sample Test Problems
- 24 Hyperfine Structure
- 24.1 Hyperfine Splitting
- 24.2 Hyperfine Splitting in a B Field
- 24.3 Examples
- 24.3.1 Splitting of the Hydrogen Ground State
- 24.3.2 Hyperfine Splitting in a Weak B Field
- 24.3.3 Hydrogen in a Strong B Field
- 24.3.4 Intermediate Field
- 24.3.5 Positronium
- 24.3.6 Hyperfine and Zeeman for H, muonium, positronium
- 24.4 Derivations and Computations
- 24.4.1 Hyperfine Correction in Hydrogen
- 24.5 Homework Problems
- 24.6 Sample Test Problems
- 25 The Helium Atom
- 25.1 General Features of Helium States
- 25.2 The Helium Ground State
- 25.3 The First Excited State(s)
- 25.4 The Variational Principle (Rayleigh-Ritz Approximation)
- 25.5 Variational Helium Ground State Energy
- 25.6 Examples
- 25.6.1 1D Harmonic Oscillator
- 25.6.2 1-D H.O. with exponential wavefunction
- 25.7 Derivations and Computations
- 25.7.1 Calculation of the ground state energy shift
- 25.8 Homework Problems
- 25.9 Sample Test Problems
- 26 Atomic Physics
- 26.1 Atomic Shell Model
- 26.2 The Hartree Equations
- 26.3 Hund’s Rules
- 26.4 The Periodic Table
- 26.5 The Nuclear Shell Model
- 26.6 Examples
- 26.6.1 Boron Ground State
- 26.6.2 Carbon Ground State
- 26.6.3 Nitrogen Ground State
- 26.6.4 Oxygen Ground State
- 26.7 Homework Problems
- 26.8 Sample Test Problems
- 27 Molecular Physics
- 27.1 The H+ 2 Ion
- 27.2 The H 2 Molecule
- 27.3 Importance of Unpaired Valence Electrons
- 27.4 Molecular Orbitals
- 27.5 Vibrational States
- 27.6 Rotational States
- 27.7 Examples
- 27.8 Derivations and Computations
- 27.9 Homework Problems
- 27.10Sample Test Problems
- 28 Time Dependent Perturbation Theory
- 28.1 General Time Dependent Perturbations
- 28.2 Sinusoidal Perturbations
- 28.3 Examples
- 28.3.1 Harmonic Oscillator in a Transient E Field
- 28.4 Derivations and Computations
- 28.4.1 The Delta Function of Energy Conservation
- 28.5 Homework Problems
- 28.6 Sample Test Problems
- 29 Radiation in Atoms
- 29.1 The Photon Field in the Quantum Hamiltonian
- 29.2 Decay Rates for the Emission of Photons
- 29.3 Phase Space: The Density of Final States
- 29.4 Total Decay Rate Using Phase Space
- 29.5 Electric Dipole Approximation and Selection Rules
- 29.6 Explicit 2p to 1s Decay Rate
- 29.7 General Unpolarized Initial State
- 29.8 Angular Distributions
- 29.9 Vector Operators and the Wigner Eckart Theorem
- 29.10Exponential Decay
- 29.11Lifetime and Line Width
- 29.11.1Other Phenomena Influencing Line Width
- 29.12Phenomena of Radiation Theory
- 29.12.1The M ̈ossbauer Effect
- 29.12.2LASERs
- 29.13Examples
- 29.13.1The 2P to 1S Decay Rate in Hydrogen
- 29.14Derivations and Computations
- 29.14.1Energy in Field for a Given Vector Potential
- 29.14.2General Phase Space Formula
- 29.14.3Estimate of Atomic Decay Rate
- 29.15Homework Problems
- 29.16Sample Test Problems
- 30 Scattering
- 30.1 Scattering from a Screened Coulomb Potential
- 30.2 Scattering from a Hard Sphere
- 30.3 Homework Problems
- 30.4 Sample Test Problems
- 31 Classical Scalar Fields
- 31.1 Simple Mechanical Systems and Fields
- 31.2 Classical Scalar Field in Four Dimensions
- 32 Classical Maxwell Fields
- 32.1 Rationalized Heaviside-Lorentz Units
- 32.2 The Electromagnetic Field Tensor
- 32.3 The Lagrangian for Electromagnetic Fields
- 32.4 Gauge Invariance can Simplify Equations
- 33 Quantum Theory of Radiation
- 33.1 Transverse and Longitudinal Fields
- 33.2 Fourier Decomposition of Radiation Oscillators
- 33.3 The Hamiltonian for the Radiation Field
- 33.4 Canonical Coordinates and Momenta
- 33.5 Quantization of the Oscillators
- 33.6 Photon States
- 33.7 Fermion Operators
- 33.8 Quantized Radiation Field
- 33.9 The Time Development of Field Operators
- 33.10Uncertainty Relations and RMS Field Fluctuations
- 33.11Emission and Absorption of Photons by Atoms
- 33.12Review of Radiation of Photons
- 33.12.1Beyond the Electric Dipole Approximation
- 33.13Black Body Radiation Spectrum
- 34 Scattering of Photons
- 34.1 Resonant Scattering
- 34.2 Elastic Scattering
- 34.3 Rayleigh Scattering
- 34.4 Thomson Scattering
- 34.5 Raman Effect
- 35 Electron Self Energy Corrections
- 35.1 The Lamb Shift
- 36 Dirac Equation
- 36.1 Dirac’s Motivation
- 36.2 The Schr ̈odinger-Pauli Hamiltonian
- 36.3 The Dirac Equation
- 36.4 The Conserved Probability Current
- 36.5 The Non-relativistic Limit of the Dirac Equation
- 36.5.1 The Two Component Dirac Equation
- 36.5.2 The Large and Small Components of the Dirac Wavefunction
- 36.5.3 The Non-Relativistic Equation
- 36.6 Solution of Dirac Equation for a Free Particle
- 36.6.1 Dirac Particle at Rest
- 36.6.2 Dirac Plane Wave Solution
- 36.6.3 Alternate Labeling of the Plane Wave Solutions
- 36.7 “Negative Energy” Solutions: Hole Theory
- 36.8 Equivalence of a Two Component Theory
- 36.9 Relativistic Covariance
- 36.10Parity
- 36.11Bilinear Covariants
- 36.12Constants of the Motion for a Free Particle
- 36.13The Relativistic Interaction Hamiltonian
- 36.14Phenomena of Dirac States
- 36.14.1Velocity Operator and Zitterbewegung
- 36.14.2Expansion of a State in Plane Waves
- 36.14.3The Expected Velocity and Zitterbewegung
- 36.15Solution of the Dirac Equation for Hydrogen
- 36.16Thomson Scattering
- 36.17Hole Theory and Charge Conjugation
- 36.18Charge Conjugate Waves
- 36.19Quantization of the Dirac Field
- 36.20The Quantized Dirac Field with Positron Spinors
- 36.21Vacuum Polarization
- 36.22The QED LaGrangian and Gauge Invariance
- 36.23Interaction with a Scalar Field
- 37 Formulas
frankie
(Frankie)
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