Many students find quantum mechanics conceptually difficult when they first encounter the subject. In this book the postulates and key applications of quantum mechanics are well illustrated by means of a carefully chosen set of problems complete with detailed step-by-step solutions. Beginning with a chapter on orders of magnitude a variety of topics are then covered including the mathematical foundations of quantum mechanics SchrÃdinger's equation angular momentum the hydrogen atom the harmonic oscillator spin time-independent and time-dependent perturbation theory the variational method multielectron atoms transitions and scattering. Throughout the physical interpretation or application of certain results is highlighted thereby providing useful insights into a wide range of systems and phenomena. This approach will make the book invaluable to anyone taking an undergraduate course in quantum mechanics. Language: English