Walecka J. Introduction to Quantum Mechanics 2021

Textbook in PDF format

The author has published two texts on classical physics, Introduction to Classical Mechanics and Introduction to Electricity and Magnetism, both meant for initial one-quarter physics courses. The latter is based on a course taught at Stanford several years ago with over 400 students enrolled. These lectures, aimed at the very best students, assume a good concurrent course in calculus; they are otherwise self-contained. Both texts contain an extensive set of accessible problems that enhances and extends the coverage. As an aid to teaching and learning, the solutions to these problems have now been published in additional texts.The present text completes the first-year introduction to physics with a set of lectures on Introduction to Quantum Mechanics, the very successful theory of the microscopic world. The Schrödinger equation is motivated and presented. Several applications are explored, including scattering and transition rates. The applications are extended to include quantum electrodynamics and quantum statistics. There is a discussion of quantum measurements. The lectures then arrive at a formal presentation of quantum theory together with a summary of its postulates. A concluding chapter provides a brief introduction to relativistic quantum mechanics. An extensive set of accessible problems again enhances and extends the coverage.The goal of these three texts is to provide students and teachers alike with a good, understandable, introduction to the fundamentals of classical and quantum physics.
Preface
Motivation
Wave Packet for Free Particle
Include Potential V (x)
Scattering
Transition Rate
Quantum Electrodynamics
Quantum Statistics
Quantum Measurements
Formal Structure of Quantum Mechanics
Quantum Mechanics Postulates
Relativity
Problems
Appendix A Electromagnetic Field in Normal Modes
Appendix B Significant Names in Quantum Mechanics—Theory and Applications