Title：Waves near Resonance: Water, Laser and Fast Train Track 

Speaker：王 展   （中国科学院力学研究所）

Time：2019年5月30日       上午  10:00-11:00

Room：东区管理科研楼  0029cc金沙贵宾会1418室

Abstract：Water waves can span scales of hundreds of kilometres to a few millimetres with fascinating and complex behaviours. At small scales, when gravity and surface tension are equally important, water waves exhibit a large variety of phenomena, one of which is the combination of geometric and nonlinear self-interaction focusing of localised disturbances near the resonant point. This phenomenon is very much like strong laser pulses propagating through a Kerr medium and vibrations of fast train track. We describe the reasons for these similarities and how the evolutions differ in long-time dynamics.