Rotation-translation coupling of a double-headed Brownian motor in a traveling-wave potential

Considering a double-headed Brownian motor moving with both translational and rotational degrees of freedom, we investigate the directed transport properties system in traveling-wave potential. It is found that traveling wave provides essential condition for system, at an appropriate angular frequency, positive current can be optimized. A general reversal appears by modulating frequency wave, noise intensity, external driving force rod length. By transforming dynamical equation potential into tilted potential, mechanism analyzed. For cases Gaussian Levy noises, currents show similar dependence on parameters. Moreover, shows typical stochastic resonance effect. The has also resonance-like effect But exhibits reverse behaviors Besides, obviously depend stability index under certain conditions.