Sharma Jyoti, Tiwari Ishant, Das Dibyendu, Parmananda P
Department of Physics, Indian Institute of Technology - Bombay, Powai, Mumbai, Maharashtra 400076, India.
Phys Rev E. 2021 Jan;103(1-1):012214. doi: 10.1103/PhysRevE.103.012214.
A chimeralike state is the spatiotemporal pattern in an ensemble of homogeneous coupled oscillators, described as the emergence of coexisting coherent (synchronized) and incoherent (unsynchronized) groups. We demonstrate the existence of these states in three active camphor ribbons, which are camphor infused rectangular pieces of paper. These pinned ribbons rotate on the surface of the water due to Marangoni effect driven forces generated by the surface tension gradients. The ribbons are coupled via a camphor layer on the surface of the water. In the minimal network of globally coupled camphor ribbons, chimeralike states are characterized by the coexistence of two synchronized and one unsynchronized ribbons. We present a numerical model, simulating the coupling between ribbons as repulsive Yukawa interactions, which was able to reproduce these experimentally observed states.
类嵌合态是均匀耦合振子集合中的一种时空模式，其被描述为共存的相干（同步）和非相干（非同步）组的出现。我们在三条活性樟脑带中证明了这些状态的存在，这些樟脑带是浸有樟脑的矩形纸片。由于表面张力梯度产生的马兰戈尼效应驱动力，这些固定的纸条在水面上旋转。纸条通过水面上的樟脑层耦合。在全局耦合樟脑带的最小网络中，类嵌合态的特征是两条同步带和一条非同步带共存。我们提出了一个数值模型，将纸条之间的耦合模拟为排斥性汤川相互作用，该模型能够重现这些实验观察到的状态。
