Generic Structures in Parameter Space and Ratchet Transport

Details Generic Structures in Parameter Space and Ratchet Transport Generic Structures in Parameter Space and Ratchet Transport

2011-11-06

arxiv.org/abs/1111.1420v1

Nonlinear Sciences

Chaotic Dynamics

7 pages, 6 figures, submitted for publication

Scientific paper

This work reports the existence of Isoperiodic Stable Ratchet Transport Structures in the parameter spaces dissipation versus spatial asymmetry and versus phase of a ratchet model. Such structures were found [Phys. Rev. Lett. 106, 234101 (2011)] in the parameter space dissipation versus amplitude of the ratchet potential and they appear to have generic shapes and to align themselves along preferred directions in the parameter space. Since the ratchet current is usually larger inside these structures, this allows us to make general statements about the relevant parameters combination to obtain an efficient ratchet current. Results of the present work give further evidences of the suggested generic properties of the isoperiodic stable structures in the context of ratchet transport.

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