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This textbook on quantum mechanics has been designed for use in two-semester undergraduate courses. It describes the basic concepts of quantum mechanics, explains the use of the mathematical formalism and provides illustrative examples of both concepts and methods. Although the aim is to enable students to master the use of quantum mechanics as a tool, the author also discusses the meaning of quantum concepts. To this end the book contains a variety of relevant examples, worked out in considerable detail, as well as a substantial number of pertinent problems and exercises. The latter will be extremely helpful, if not essential, for gaining a deep understanding and command of the subject. This book is based on the author´s thirty years experience of teaching the subject.

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Introduction.- The Schroedinger Equation.- Some Simple Systems.- Physical Observables as Operators.- Basic Principles of Quantum Mechanics.- Time Evolution.- Some More Simple Systems.- Angular Momentum.- Eigenstates of the Angular Momentum.- Spin.- Addition of Angular Momenta.- Motion in Three Dimensions.- Central Potentials.- Systems of Particles.- Atoms.- Molecules.- Particle Interactions with EM Fields.- Approximation Methods.- Symmetries.- Scattering.- Quantum Behaviour.- Quantization of EM Fields.- Matter-Radiation Interaction.- The Path Integral Formulation of QM.- Mathematical Supplement.

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Kyriakos Tamvakis is Professor of Theoretical Physics at the University of Ioannina. A graduate of the University of Athens, Greece, he obtained his PhD at Brown University, USA, in 1978. Since then he has held several positions at CERN´s Theoretical Physics Division in Geneva, Switzerland. He has been Professor of Theoretical Physics at the University of Ioannina, Greece, since 1982. He has published 120 articles on theoretical particle physics and cosmology. He has thirty years experience of teaching quantum mechanics.

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