The Fundamentals. Along with the authors follow-up book on advanced topics, this text provides students with a broad, up-to-date introduction to quantum mechanics. The text offers a graduate-level account of the behavior of matter and energy at the molecular, atomic, nuclear, and sub-nuclear levels. It presents the latest mathematical treatments, theoretical methods, applications, and experimental observations. A collection of problems at the end of each chapter develops students understanding of both basic concepts and the application of theory to various physically important systems.