一定の速度で移動しながら形状を維持する孤立波

a solitary wave that maintains its shape while traveling at constant speed

(physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate

（物理学）非線形系で進行波として伝搬できるエネルギーの量子または準粒子。前後に他の同様な擾乱がなく、重ね合わせの原理に従わず、消散しません。