Abstract:
We formulate a method for calculating the velocities of the edges of dispersive shock waves that are generated after wave breaking of pulses during their propagation in a nonlinear medium. The method is based on the properties of the Whitham modulation system at its degenerate limits obtained for either a vanishing amplitude of oscillations at one edge or a vanishing wave number at the other edge.
Citation:
A. M. Kamchatnov, “Motion of dispersive shock edges in nonlinear pulse evolution”, TMF, 202:3 (2020), 415–424; Theoret. and Math. Phys., 202:3 (2020), 363–370
This publication is cited in the following 3 articles:
A. M. Kamchatnov, “Gurevich–Pitaevskii problem and its development”, Phys. Usp., 64:1 (2021), 48–82
A. M. Kamchatnov, “Number of solitons generated from an intense initial pulse at asymptotically large time”, J. Exp. Theor. Phys., 132:1 (2021), 63–72
Kamchatnov A.M., “Theory of Quasi-Simple Dispersive Shock Waves and Number of Solitons Evolved From a Nonlinear Pulse<?a3B2 Show [Editpick]?>”, Chaos, 30:12 (2020), 123148