Quantum mechanics

Written for undergraduate physics students, this quantum mechanics textbook takes an unusual route into the subject. Rather than opening with abstract theory, it starts with laboratory observations, such as the Stern-Gerlach experiment and measurements of spin, and builds the core principles from those results.

The text introduces Dirac notation from the first chapter, giving readers a flexible set of mathematical tools for calculation while getting them comfortable with that notation. Matrix methods are developed alongside it. The author presents this approach as a way to strengthen conceptual understanding, and it has been tested extensively in classrooms. Throughout the book, worked examples show the reasoning step by step, and end-of-chapter problems reinforce and extend the main ideas. Discussion of modern experimental work and current research directions runs through the material.

Students can use online activities, including interactive simulations of Stern-Gerlach experiments, to explore the ideas further. Instructors have access to a fully worked solutions manual. This edition is a more affordable printing published by Cambridge University Press.