Quantum Mechanics
Publication Details
Author: Richard Fitzpatrick
Publisher: World Scientific
Publication Date: June 15, 2015
ISBN: 978-981-4689-94-6
Description
Quantum mechanics was developed during the first few decades of the twentieth century via a series of inspired guesses made by various physicists, including Planck, Einstein, Bohr, Schroedinger, Heisenberg, Pauli, and Dirac. All these scientists were trying to construct a self-consistent theory of microscopic dynamics that was compatible with experimental observations.
The purpose of this book is to present quantum mechanics in a clear, concise, and systematic fashion, starting from the fundamental postulates, and developing the theory in as logical a manner as possible. Topics covered in the book include the fundamental postulates of quantum mechanics, angular momentum, time-independent and time-dependent perturbation theory, scattering theory, identical particles, and relativistic electron theory.
Table of Contents
- 1. Fundamental Concepts. Breakdown of Classical Physics; Photon Polarization; Fundamental Principles of Quantum Mechanics; Ket Space; Bra Space; Operators; Outer Product; Eigenvalues and Eigenvectors; Observables; Measurements; Expectation Values; Degeneracy; Compatible Observables; Uncertainty Relation; Continuous Spectra; Exercises.
- 2. Position and Momentum. Introduction; Poisson Brackets; Wavefunctions; Schroedinger Representation; Generalized Schroedinger Representation; Momentum Representation; Heisenberg Uncertainty Principle; Displacement Operators; Exercises.
- 3. Quantum Dynamics. Introduction; Schroedinger Equation of Motion; Heisenberg Equation of Motion; Ehrenfest Theorem; Schroedinger Wave Equation; Charged Particle Motion in Electromagnetic Fields; Gauge Transformations in Electromagnetism; Flux Quantization and the Aharonov-Bohm Effect; Exercises.
- 4. Orbital Angular Momentum. Orbital Angular Momentum; Eigenvalues of Orbital Angular Momentum; Rotation Operators; Eigenfunctions of Orbital Angular Momentum; Motion in Central Field; Energy Levels of Hydrogen Atom; Exercises.
- 5. Spin Angular Momentum. Introduction; Properties of Spin Angular Momentum; Wavefunction of Spin One-Half Particle; Rotation Operators in Spin Space; Magnetic Moments; Spin Precession; Pauli Two-Component Formalism; Spinor Rotation Matrices; Factorization of Spinor-Wavefunctions; Spin Greater Than One-Half Systems; Exercises.
- 6. Addition of Angular Momentum. Introduction; Commutation Rules; Clebsch-Gordon Coefficients; Calculation of Clebsch-Gordon Coefficients; Exercises.
- 7. Time-Independent Perturbation Theory. Introduction; Two-State System; Non-Degenerate Perturbation Theory; Quadratic Stark Effect; Degenerate Perturbation Theory; Linear Stark Effect; Fine Structure; Zeeman Effect; Hyperfine Structure; Exercises.
- 8. Time-Dependent Perturbation Theory. Introduction; General Analysis; Two-State System; Nuclear Magnetic Resonance; Dyson Series; Sudden Perturbations; Energy-Shifts and Decay-Widths; Harmonic Perturbations; Absorption and Stimulated Emission of Radiation; Spontaneous Emission of Radiation; Electric Dipole Transitions; Forbidden Transitions; Magnetic Dipole Transitions; Electric Quadrupole Transitions; Photo-Ionization; Exercises.
- 9. Identical Particles. Introduction; Permutation Symmetry; Spin Statistics Theorem; Two-Electron System; Helium Atom; Orthohelium and Parahelium; Variational Principle; Hydrogen Molecule Ion; Exercises.
- 10. Scattering Theory. Introduction; Fundamental Equations; Born Approximation; Born Expansion; Partial Waves; Optical Theorem; Determination of Phase-Shifts; Hard-Sphere Scattering; Low-Energy Scattering; Resonant Scattering; Elastic and Inelastic Scattering; Scattering of Identical Particles; Exercises.
- 11. Relativistic Electron Theory. Introduction; Preliminary Analysis; Dirac Equation; Lorentz Invariance of Dirac Equation; Free Electron Motion; Electron Spin; Motion in Central Field; Fine Structure of Hydrogen Energy Levels; Positron Theory; Exercises.
- A. Physical Constants.
- B. Solutions to Exercises.
- Bibliography.
Purchase Details
This book can be purchased directly from World Scientific.
Richard Fitzpatrick