"Version: 20231001"--Title page verso.Includes bibliographical references.part I. Preliminary concepts. 1. The overall picture -- 1.1. The atomistic structure of matter -- 1.2. The quantum nature of physical laws -- 1.3. Subtleties of the quantum picture -- 1.4. The dual nature of physical phenomena2. Essential quantum mechanics -- 2.1. The wavefunction -- 2.2. Quantum operators -- 2.3. The unc…