Rectifying the thermal Brownian motion of three-dimensional asymmetric objects.
We extend the analysis of a thermal Brownian motor reported by Van den Broeck [Phys. Rev. Lett. 93, 090601 (2004)] to a three-dimensional configuration. We calculate the friction coefficient, diffusion coefficient, and drift velocity as functions of shape and present estimates based on physically realistic parameter values.
van den Broek
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Hasselt University, Diepenbeek, Belgium.
Van den Broeck
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