We propose a simple and analytically solvable model for a motor that generates mechanical motion by exploiting an entropic force arising from the topology of the underlying phase space. We show that the generation of mechanical forces in our system is surprisingly robust to local changes in kinetic and topological parameters. Furthermore, we find that the efficiency at maximum power of the motor may show discontinuities.
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| http://dx.doi.org/10.1103/PhysRevE.88.042115 | DOI Listing |
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Entropy-generated power and its efficiency.
Phys Rev E Stat Nonlin Soft Matter Phys
October 2013
Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark.
We propose a simple and analytically solvable model for a motor that generates mechanical motion by exploiting an entropic force arising from the topology of the underlying phase space. We show that the generation of mechanical forces in our system is surprisingly robust to local changes in kinetic and topological parameters. Furthermore, we find that the efficiency at maximum power of the motor may show discontinuities.
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