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[en] A numerical and analytical study of the Zitterbewegung of a wavepacket of Volkov wavefunctions is presented. The amplitude of the trembling motion is shown to follow periodic collapses and revivals. This time dependence is explained from two different points of view: first relating the Volkov wavepacket with a Jaynes-Cummings model, and second by direct inspection of the dynamics of the wavepacket. Both explain perfectly the result obtained from the numerical simulations
Journal
Journal of Physics. B, Atomic, Molecular and Optical Physics; ISSN 0953-4075; 
; CODEN JPAPEH; v. 36(11); p. 2253-2266
; CODEN JPAPEH; v. 36(11); p. 2253-2266