  An antisymmetric tensor, the photon tensor, is defined for the description of
the photon as a massless relativistic particle. The photon can be visualized as
an essentially two dimensional rotating object. The quantum mechanical
description of a single photon is presented and it is shown that it is wrong to
associate the quantum states of a photon with the macroscopic electromagnetic
fields. This work is part of a series devoted to the attempt to understand the
quantum of electromagnetic radiation, based on the assumption that the photons
are the primary ontology and that the electromagnetic fields are macroscopic
emergent properties of an ensemble of photons.
