The Quantum Mechanics Solver grew from topics which are part of the final examination in quantum theory at the Ecole Polytechnique at Palaiseau near Paris, France. The aim of the text is to guide the student towards applying quantum mechanics to research problems in fields such as atomic and molecular physics, condensed matter physics, and laser physics. Advanced undergraduates and graduate students will find a rich and challenging source for improving their skills in this field.

Elementary Particles, Nuclei and Atoms.- Neutrino Oscillations.- Summary of Quantum Mechanics.- Quantum Entanglement and Measurement.- The EPR Problem and Bell's Inequality.- Complex Systems.- Exact Results for the Three-Body Problem.- Atomic Clocks.- Neutron Interferometry.- Spectroscopic Measurement on a Neutron Beam.- Analysis of a Stern-Gerlach Experiment.- Measuring the Electron Magnetic Moment Anomaly.- Decay of a Tritium Atom.- The Spectrum of Positronium.- The Hydrogen Atom in Crossed Fields.- Energy Loss of Ions in Matter.- Schrödinger's Cat.- Quantum Cryptography.- Direct Observation of Field Quantization.- Ideal Quantum Measurement.- The Quantum Eraser.- A Quantum Thermometer.- Properties of a Bose-Einstein Condensate.- Magnetic Excitons.- A Quantum Box.- Colored Molecular Ions.- Hyperfine Structure in Electron Spin Resonance.- Probing Matter with Positive Muons.- Quantum Reflection of Atoms from a Surface.- Laser Cooling and Trapping.- Bloch Oscillations.