The propagation of an extremely short optical pulse is analyzed based on a numerical solution of the Maxwell equation for a dilaton field in a flat space-time. The dynamics of the pulse turned out to be unstable and the pulse collapsed. The influence of the Lagrangian parameter α is analyzed in cases of the Einstein–Maxwell scalar theory, low-energy action of string theory, and the Kaluza–Klein field equations obtained by dimensional reduction of the Einstein five-dimensional theory.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 165–169, January, 2022.
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Konobeeva, N.N., Belonenko, M.B. Extremely Short Optical Pulses in the Presence of Dilatons. Russ Phys J 65, 179–184 (2022). https://doi.org/10.1007/s11182-022-02620-6
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DOI: https://doi.org/10.1007/s11182-022-02620-6