Definition of soliton in English:



  • A quantum or quasiparticle propagated as a traveling nondissipative wave that is neither preceded nor followed by another such disturbance.

    • ‘Paolo Di Trapani of the University of Insubria in Como, Italy, and his colleagues, came up with a pulse shape that combines attributes of both solitons and linear X waves.’
    • ‘The atoms were manipulated to form tidy bundles of waves, called solitons, which retained their shape and strength.’
    • ‘Though the depression solitons were eventually damped by viscosity, they maintained the shape and velocity required by the standard soliton equations as they traveled across the channel.’
    • ‘A soliton is a solitary pulselike wave that can travel long distances without becoming distorted, even when it is moving very slowly through a supercold gas.’
    • ‘And because atoms have weight - unlike photons - solitons respond in an easily measured fashion to gravity shifts.’


1960s: from solitary + -on.