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

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

Figure 6. Dependence of the average velocity of the system on the atoms’ configuration 1/θ for three different ac forces. (a) b = 0, (b) b = 0.5, (c) b = 5. The other parameters are ${F}_{d}=0.8,{\omega }_{0y}=0.5$ and ω = 0.02π.