CNRS, Université Pierre et Marie Curie, Université Paris-Sud, Lab FAST, Bât 502, Campus Universitaire, Orsay 91405, France.
Phys Rev Lett. 2009 Dec 4;103(23):234501. doi: 10.1103/PhysRevLett.103.234501. Epub 2009 Dec 2.
We analyze the coherent-structure interaction and the formation of bound states in active dispersive-dissipative nonlinear media using a viscous film coating a vertical fiber as a prototype. The coherent structures in this case are droplike pulses that dominate the evolution of the film. We study experimentally the interaction dynamics and show evidence for formation of bound states. A theoretical explanation is provided through a coherent-structures theory of a simple model for the flow.
我们使用垂直纤维上的粘性薄膜作为原型，分析了主动色散耗散非线性介质中的相干结构相互作用和束缚态的形成。在这种情况下，相干结构是主导薄膜演化的液滴状脉冲。我们通过实验研究了相互作用动力学，并为束缚态的形成提供了证据。通过对流动的简单模型的相干结构理论，给出了理论解释。
