On the Physical Origin of the Oppenheimer-Ahluwalia Zero-Energy   Solutions
  In virtue of the Chubykalo - Smirnov-Rueda generalized form of the Maxwell-Lorentz equation a new form of the energy density of the electromagnetic field was obtained. This result allows us to explain a physical origin of the Oppenheimer-Ahluwalia zero-energy solutions of the Maxwell equations. 
Andrew E. Chubykalo (Universidad Autonoma de Zacatecas)