title: Thermal Brownian motor coupled by Casimir interaction.
abstract: We study a Feynman-like thermal Brownian motor, in which the asymmetric corrugated cylinder as the ratchet is coupled with a corrugated plate by the noncontact Casimir interaction between them. The source of driving of the system is the thermal fluctuations and its dynamic evolution is described by a set of Langevin equations. Further, the mean velocity and thermal efficiency of the motor in the overdamped limit are studied in detail as a function of the temperature of the baths, external load applied, magnitude of the Casimir interaction, and other relevant parameters by the numerical stimulation. The transport properties attained here and the essential roles of the Casimir interaction can be explicitly demonstrated by designing a Casimir Brownian motor with present nanotechnology.
authors.affiliation: School of Computer, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China. henameiswen@sina.com
authors.forename: Wenjie
authors.initials: W
authors.lastname: Nie
authors.forename: Qinghong
authors.initials: Q
authors.lastname: Liao
authors.forename: Jizhou
authors.initials: J
authors.lastname: He
mesh_terms: D007700:Kinetics; D008962:Models, Theoretical; D009038:Motion; D013696:Temperature