A dynamical transition of a chain of charged particles in a 2D substrate potential

Xiao-Ping Yuan,Li-Yan Qiao,Xia Huang

Figure 2. Dependence of the average velocity of the system on amplitude b and frequency ω of the ac force. The grayscale indicates the value of the average velocity. The parameters are Fd = 0.28, K = 0.51, $\theta =(\sqrt{5}-1)/2,{\omega }_{0y}=0.5$.