B. Kharkongor, S. S. Pohlong, M. Mahato
Jan 15, 2021
Physica A-statistical Mechanics and Its Applications
Abstract Ratchet effect (net transport without any obvious bias) has been obtained in a periodic potential system. In the present work, in contrast, the net transport of particles is obtained numerically in a potential-free system with friction coefficient in the form of a traveling wave and driven by a zero-mean sinusoidal force. The nature of particle trajectories and hence the direction and magnitude of the particle current strongly depend on the ratio ( r ) of the frequencies of the friction coefficient and the periodic drive. The effect of the amplitude of the two periodic functions on the net current is also investigated.