The directed motion of Brownian particles is generated by a travelling asymmetric potential.The asymptotic behaviour of probability density of the particles at long time is a solitary wave.The Brownian particles can d...The directed motion of Brownian particles is generated by a travelling asymmetric potential.The asymptotic behaviour of probability density of the particles at long time is a solitary wave.The Brownian particles can do work against an external opposing force with high efficiency.The analytical expressions of the solitary wave and the efficiency of the Brownian particles are obtained.The average velocity and the efficiency of the particles depends strongly on the travelling speed and the asymmetry of the potential.展开更多
基金supported by grants from the Natural Science Foundation of Hebei Province of China(C2013202192)The National Natural Science Foundation of China(11275271,11675265)Postdoctoral Merit Funding Project of Hebei Province(B2018003006)~~
基金Supported by the National Natural Science Foundation of China under Grant Nos.19975073the China Postdoctoral Science Foundation.
文摘The directed motion of Brownian particles is generated by a travelling asymmetric potential.The asymptotic behaviour of probability density of the particles at long time is a solitary wave.The Brownian particles can do work against an external opposing force with high efficiency.The analytical expressions of the solitary wave and the efficiency of the Brownian particles are obtained.The average velocity and the efficiency of the particles depends strongly on the travelling speed and the asymmetry of the potential.
