THE ORIGINS OF THE QUANTUM THEORY by CATHRYN CARSON

WHAT IS A QUANTUM THEORY? We have been asking that question for a long time, ever since Max Planck introduced the element of discontinuity we call the quantum a century ago. Since then, the chunkiness of Nature (or at least of our theories about it) has been built into our basic conception of the world. It has prompted a fundamental rethinking of physical theory. At the same time it has helped make sense of a whole range of peculiar behaviors manifested principally at microscopic levels.


http://www.math.nagoya-u.ac.jp/~richard/teaching/s2015/QM_1.pdf


Chapter 1 Historical overview of the developments of quantum mechanics

Chapter 2 Particle-like behavior of light


http://www.math.nagoya-u.ac.jp/~richard/teaching/s2015/QM_2.pdf