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The gravitational field of a laser pulse, although not detectable at themoment, comes with a peculiar feature which continues to attract attention;cause and effect propagate with the same speed, that of light. A particularresult of this feature is that the gravitational field of an emitted laserpulse and the gravitational effect of the emitter's energy-momentum change areintimately entangled. In this article, a specific example of an emissionprocess is considered - an atom, modeled as a point mass, emits twocounter-propagating pulses. The corresponding curvature and the effect onmassive and massless test particles is discussed. A comparison is made with themetric corresponding to a spherically symmetric massive object thatisotropically emits radiation - the Vaidya metric.

Gravitational properties of light - The emission of counter-propagating laser pulses from an atom