soliton

In mathematics and physics, a soliton or solitary wave is a self-reinforcing wave packet that maintains its shape while it propagates at a constant velocity. Solitons are caused by a cancellation of nonlinear and dispersive effects in the medium. Solitons are the solutions of a widespread class of weakly nonlinear dispersive partial differential equations describing physical systems. The soliton phenomenon was first described in 1834 by John Scott Russell who observed a solitary wave in the Union Canal in Scotland. He reproduced the phenomenon in a wave tank and named it the "Wave of Translation".

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Soliton microcomb generation by cavity polygon modes - EurekAlert

Atomic terahertz-vibrations solve the enigma of ultrashort soliton molecules

Photonic Crystal Fiber-Based “Parallel Reactors” Unveil Collective Matter-Light Analogies of Soliton Molecules

PCF-based 'parallel reactors' unveils collective matter-light analogies of soliton molecules

Breaking the warp barrier: hyper-fast solitons in Einstein–Maxwell-plasma theory. This paper overcomes major FTL travel barriers by constructing a class of soliton solutions that are capable of superluminal motion and sourced by purely positive energy densities