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D. Rätzel, M. Wilkens, and R. Menzel
Gravitational properties of light: The emission of counter-propagating laser pulses from an atom
Phys. Rev. D 95 (2017) 084008


    received 31 January 2017 - The gravitational field of a laser pulse, although not detectable at the moment, has a special feature which continues to attract attention; cause and effect propagate with the same speed, the speed of light. One particular result of this feature is that the gravitational field of an emitted laser pulse and the gravitational effect of the emitter's energy-momentum change are intimately entangled. In this article, a specific example of an emission process is considered: An atom, modeled as a point mass, emits two counter-propagating pulses. The corresponding curvature and the effect on massive and massless test particles is discussed. A comparison is made with the metric corresponding to a spherically symmetric massive object that isotropically emits radiation; the Vaidya metric.

[ 1607.01310 ] [ DOI ]

file generated: 4 Jan 2018

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