色噪声对分子马达定向流的影响

Effect of Colored-noise on Direct Current of Molecular Motor

推导了在乘性色噪声驱动下分了马达定态几率流的表达式。通过解析计算和数值模拟得到，加性白噪声不能驱动分子马达产生定向运动；在一维周期惯性锯齿势中，随着噪声强度的增加，定态几率流增大；随着噪声自关联时间参数的增加定态几率流反而减小。

The expansion of stalionare probability current is derived for the molecular motor driven by colored noises. Through the analytical calculation and numerical simulation, additive white noise can't induce molecular motor to produce direct motion. The steady probability current increases with the strength of noise increasing, but decreases with the noise correlation time increasing.