Symmetric Brownian motor

Abstract

In this paper we present a model of a symmetric Brownian motor (SBM) which changes the sign of its velocity when the temperature gradient is inverted. The velocity, external work and efficiency are studied as a function of the temperatures of the baths and other relevant parameters. The motor shows a current reversal when another parameter (a phase shift) is varied. Analytical predictions and results from numerical simulations are performed and agree very well. Generic properties of this type of motors are discussed.

8 pages and 10 figures

References in corpus (5)

• Brownian motors: noisy transport far from equilibrium
• Exact microscopic analysis of a thermal Brownian motor
• Brownian motors: current fluctuations and rectification efficiency
• Inattainability of Carnot efficiency in the Brownian heat engine
• Rectification of Fluctuations in an Underdamped Ratchet

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• Tight coupling in thermal Brownian motors
• Two simple models of classical heat pumps
• Overdamped stochastic thermodynamics with multiple reservoirs
• A minimal model of an autonomous thermal motor
• Quantum current in dissipative systems
• White noise flashing Brownian pump
• Heat Fluctuations in Brownian Transducers
• Nonequilibrium steady state thermodynamics and fluctuations for stochastic systems
• Ratchet, pawl and spring Brownian motor