An ensemble of particles in thermal equilibrium at temperature $T$, modeled by Nos`e-Hoover dynamics, moves on a triangular lattice of oriented semi-disk elastic scatterers. Despite the scatterer asymmetry a directed transport is clearly ruled out by the second law of thermodynamics. Introduction of a polarized zero mean monochromatic field creates a directed stationary flow with nontrivial dependence on temperature and field parameters. We give a theoretical estimate of directed current induced by a microwave field in an antidot superlattice in semiconductor heterostructures
Cristadoro, G., Shepelyansky, D. (2005). Nonequilibrium stationary states with ratchet effect. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 71(3) [10.1103/PhysRevE.71.036111].
Nonequilibrium stationary states with ratchet effect
Cristadoro, G;
2005
Abstract
An ensemble of particles in thermal equilibrium at temperature $T$, modeled by Nos`e-Hoover dynamics, moves on a triangular lattice of oriented semi-disk elastic scatterers. Despite the scatterer asymmetry a directed transport is clearly ruled out by the second law of thermodynamics. Introduction of a polarized zero mean monochromatic field creates a directed stationary flow with nontrivial dependence on temperature and field parameters. We give a theoretical estimate of directed current induced by a microwave field in an antidot superlattice in semiconductor heterostructures
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