Advanced Quantum Mechanics_4ed

In this latest edition new material has been added, which includes many additional clarifying remarks and cross references. The design of all figures has been reworked, the layout has been improved and unified to enhance the didactic appeal of the book, however, in the course of these changes I have attempted to keep intact its underlying compact nature. I am grateful to many colleagues for their help with this substantial revision. Again, special thanks go to Uwe T¨auber and Roger Hilton for discussions, comments and many constructive suggestions. I should like to thank Dr. Herbert M¨uller for his generous help in all computer problems. Concerning the graphics, I am very grateful to Mr Wenzel Sch¨urmann for essential support and to Ms Christina Di Stefano and Mr Benjamin S´anchez who undertook the graphical design of the diagrams. It is my pleasure to thank Dr. Thorsten Schneider and Mrs Jacqueline Lenz of Springer for the excellent co-operation, as well as the le-tex setting team for their careful incorporation of the amendments for this new edition. Finally, I should like to thank all colleagues and students who, over the years, have made suggestions to improve the usefulness of this book.