Quantum mechanics

Students of physics, chemistry and electrical engineering need quantum mechanics, and it rests on a substantial body of mathematics. This textbook works through that mathematics step by step, building most of its concepts up from first principles, which also makes it workable for readers studying on their own.

Several topics receive particular attention. The JWKB approximation, time-independent perturbation theory and the effects of a magnetic field each get dedicated chapters. The linear harmonic oscillator is covered across two full chapters, using operator algebra to derive its wave functions and to follow how a coherent state evolves over time. Three chapters are devoted to angular momentum.

The book pairs its theory with a wide range of applications. These span astrophysics, nuclear physics, atomic and molecular spectroscopy, solid-state physics and quantum well structures.