Quantum States of Light

This book explains what quantum states of light look like.

Of special interest, a single photon state is explained by using a wave picture, showing that it corresponds to the complementarity of a quantum.

Also explained is how light waves are created by photons, again corresponding to the complementarity of a quantum.

The author shows how an optical wave is created by superposition of a "vacuum" and a single photon as a typical example.

Moreover, squeezed states of light are explained as "longitudinal" waves of light and Schroedinger's cat states as macroscopic superposition states.