Volume II of the unrivalled textbook contains the quantum theory of scattering by a potential, addition of angular momenta, time-independent and time-dependent perturbation theory, and systems of identical particles. The new edition also includes a new complement in order to treat an important subject that was missing in the previous editions: the linear response theory, very often used in many fields of physics such as atomic physics and quantum optics, condensed matter physics, and nuclear physics. The textbook retains its typical style also in the third edition: it explains the fundamental concepts in chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * The quantum mechanics classic: written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the book contains more than 170 worked examples plus exercises