Brownian diode: Molecular motor based on a semi-permeable Brownian particle with internal potential drop

Abstract

A model of an autonomous isothermal Brownian motor with an internal propulsion mechanism is considered. The motor is a Brownian particle which is semi-transparent for molecules of surrounding ideal gas. Molecular passage through the particle is controlled by a potential similar to that in the transition rate theory, i.e. characterized by two stationary states with a finite energy difference separated by a potential barrier. The internal potential drop maintains the diode-like asymmetry of molecular fluxes through the particle, which results in the particle's stationary drift.

9 pages, 5 figures

References in corpus (4)

• Propulsion of a molecular machine by asymmetric distribution of reaction--products
• A Granular Brownian Ratchet Model
• Granular Brownian Motor
• Efficiency at maximum power for classical particle transport

Cited by in corpus (1)

• Autonomous Brownian motor driven by nonadiabatic variation of internal parameters