Quantum theory

Quantum theory deals with the fundamental particles of matter and their interaction with electromagnetic radiation. The theory was pioneered by Max Planck, who suggested that physical systems can have properties such as energy only in discrete whole values: small packets of energy called quanta. Subsequent studies paved the way for the development of the quantum theory of matter, which is the foundation of all modern physics as well as much of chemistry, despite many axioms that seem contradictory to preconceived common-sense notions of reality. Quantum theory has applications to many technologies.