Considering an elastically coupled Brownian motors system in a two-dimensional traveling-wave potential, we investigate the effects of the angular frequency of the traveling wave, wavelength, coupling strength, free length of the spring, and the noise intensity on the current of the system. It is found that the traveling wave is the essential condition of the directed transport. The current is dominated by the traveling wave and varies nonmonotonically with both the angular frequency and the wavelength. At an optimal angular frequency or wavelength, the current can be optimized. The coupling strength and the free length of the spring can locally modulate the current, especially at small angular frequencies. Moreover, the current decreases rapidly with the increase of the noise intensity, indicating the interference effect of noise on the directed transport.

中文翻译：

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二维行波势中耦合布朗电机的定向传输

考虑二维行波电势下的弹性耦合布朗电机系统，我们研究了行波角频率，波长，耦合强度，弹簧的自由长度以及噪声强度对电流的影响。系统。发现行波是定向传输的必要条件。电流受行波支配，并且随角频率和波长非单调变化。在最佳角频率或波长下，可以优化电流。弹簧的耦合强度和自由长度可以局部调节电流，特别是在较小的角频率下。而且，电流随着噪声强度的增加而迅速减小，