A Scalar Representation of Electromagnetic Fields: III

Abstract

The transformation properties of the single complex quantity, introduced by Green and Wolf to describe the electromagnetic field, are investi- gated and the physical energy-momentum tensor of this field is derived in terms of the scalar theory. In particular, it is found that the energy density, as defined in the previous paper, is identical with that given by the physical energy- momentum tensor ; and that the energy flow density differs from the one given by this tensor only by a divergence-free vector.