Energy Distribution of a Stationary Beam of Light

TL;DR

This paper derives the energy distribution of a stationary light beam's spacetime independently, confirming previous results and supporting the Cooperstock hypothesis without relying on earlier methods.

Contribution

It provides a new derivation of energy distribution in Kerr-Schild metrics, independently verifying prior findings and reinforcing the validity of the energy-momentum complexes used.

Findings

Energy distribution matches previous results

Supports the Cooperstock hypothesis

Independent verification of Bringley's results

Abstract

Aguirregabiria et al showed that Einstein, Landau and Lifshitz, Papapetrou, and Weinberg energy-momentum complexes coincide for all Kerr-Schild metric. Bringely used their general expression of the Kerr-Schild class and found energy and momentum densities for the Bonnor metric. We obtain these results without using Aguirregabiria et al results and verify that Bringley's results are correct. This also supports Aguirregabiria et al results as well as Cooperstock hypothesis. Further, we obtain the energy distribution of the space-time under consideration.