This paper reports superdiffusive energy spreading in 2D momentum-conserving nonlinear lattices, described by Lévy-stable distributions, with momentum diffusion no longer superdiffusive.
Dhar , journal Adv
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Anomalous energy diffusion in two-dimensional nonlinear lattices
This paper reports superdiffusive energy spreading in 2D momentum-conserving nonlinear lattices, described by Lévy-stable distributions, with momentum diffusion no longer superdiffusive.