A laser-source model of the gravitational field
This work uses a generalization of the Einstein equations with an additional term proportional to the square of the graviton mass. The energy-momentum tensor is assumed to come from an electromagnetic field, in particular a plane wave field which is claimed to approximate a laser beam. The Einstein equations are solvable in this model and indicate that the graviton term is related to the electromagnetic field
scientific article; zbMATH DE number 1466016