Xin Feifei, Di Mei Fabrizio, Falsi Ludovica, Pierangeli Davide, Conti Claudio, Agranat Aharon J, DelRe Eugenio
Dipartimento di Fisica, Università di Roma "La Sapienza", 00185 Rome, Italy.
College of Physics and Materials Science, Tianjin Normal University, 300387 Tianjin, China.
Phys Rev Lett. 2021 Sep 24;127(13):133901. doi: 10.1103/PhysRevLett.127.133901.
We observe chaotic optical wave dynamics characterized by erratic energy transfer and soliton annihilation and creation in the aftermath of a three-soliton collision in a photorefractive crystal. Irregular dynamics are found to be mediated by the nonlinear Raman effect, a coherent interaction that leads to nonreciprocal soliton energy exchange. Results extend the analogy between solitons and particles to the emergence of chaos in three-body physics and provide new insight into the origin of the irregular dynamics that accompany extreme and rogue waves.
我们观察到在光折变晶体中三孤子碰撞后呈现出的混沌光波动力学，其特征为能量转移不稳定以及孤子的湮灭和产生。发现不规则动力学是由非线性拉曼效应介导的，这是一种导致非互易孤子能量交换的相干相互作用。研究结果将孤子与粒子之间的类比扩展到三体物理中的混沌现象，并为伴随极端波和 rogue 波出现的不规则动力学的起源提供了新的见解。
