Becker et al. observed particle-like behavior in the dark-bright variety of these entities in a BEC.
Becker et al. observed particle-like behavior in the dark-bright variety of these entities in a BEC. These things were shown to be conserved in collisions via computer simulations done by Norman Zabusky and Martin Kruskal. These solutions often arise when problems are attacked with an inverse scattering transform. The existence of these things explains why many seemingly-chaotic systems have approximately periodic behavior, resolving a "paradox" formulated by Fermi, Pasta, and Ulam. They are solutions to non-linear differential equations like the Korteweg-de Vries and Sine-Gordon equations. These entities were called "waves of translation" after being first noticed by John Scott Russell in a Scottish canal. For 10 points, identify these shape-maintaining solitary waves.
Becker et al. observed particle-like behavior in the dark-bright variety of these entities in a BEC.
solitons [prompt on solitary waves]