Fig. 4.
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Evolution of the electrostatic energy density in simulations normalized to the initial kinetic energy density. Although in S1–1D and S3–1D, the solitons survive until the simulations end, in S2–1D, the solitons disappear before ωpt = 2000. No solitons appear in 2D simulations. (a) S1–1D. (b) S2–1D. (c) S3–1D. (d) S1–2D. (e) S2–2D. (f) S3–2D.
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